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Yuzuru Miyazaki

Section

Graduate School of Engineering

Job title

Professor

Degree

博士（工学）（東北大学）

researchmap

https://researchmap.jp/read0184482

J-GLOBAL ID

200901017545424868

Research History 3

1997/07 - 1999/07

School of Chemistry, University of Birmingham, UK　JSPS Post Doctral Fellowship
1993/04 - 1994/03

Institute for Materials Research, Tohoku University　日本学術振興会特別研究員
1989/04 - 1991/02

株式会社本田技術研究所和光研究所　所員

Education 2

Tohoku University　Graduate School, Division of Engineering

- 1994/03
Tohoku University　Faculty of Engineering　材料加工学科

- 1987/03/31

Committee Memberships 34

応用物理学会　理事

2024/04 - Present
応用物理学会東北支部　支部長

2024/04 - Present
International Thermoelectric Society　Board of Directors of the ITS

2023/06 - Present
Thermoelectrics Society of Japan　Vice President

2022/08 - Present
International Conference on Thermoelectricity (ICT2025)　Conference co-chair

2021/06 - Present
Thermoelectric Society of Japan　Director

2012/07 - Present
応用物理学会東北支部　幹事

2012/04 - Present
日本熱電学会　国際交流委員

2009/05 - Present
日本熱電学会　表彰委員会委員長

2018/09 - 2022/08
The 5th Southeast Asia Conference on Thermoelectrics (SACT2018)　Organising Committee member

2018/05 - 2018/12
XVI INTERSTATE CONFERENCE «THERMOELECTRICS AND THEIR APPLICATIONS-2018» (ISCTA 2018)　Organising Committee Member

2018/03 - 2018/12
日本熱電学会学術講演会　現地実行委員長

2017/09 - 2018/09
日本熱電学会　欧文論文誌編集委員会委員長

2014/09 - 2018/08
The Thermoelectric Society of Japan　欧文論文誌編集委員会委員長

2014/08 - 2018/07
CIMTEC2018 International Conference　Organiser, Convener

2017/10 - 2018/06
International Symposium on Thermoelectric Materials Science 2015　Organising Committee

2015/08 - 2015/11
Aalto University　Pre-examiner of a PhD student

2015/08 - 2015/09
PacRim11　Session organiser

2014/04 - 2015/08
CMCEE 11　Session organiser

2014/01 - 2015/06
IUMRS-ICA2014　Session organiser

2013/08 - 2014/08
ICT2013国際会議プログラム委員会　委員長

2010/12 - 2013/07
日本熱電学会　学会誌編集委員

2010/10 - 2013/07
IUMRS-ICEM　Session organiser

2011/12 - 2012/09
日本熱電学会　ロードマップWG委員

2011/02 - 2012/06
日本熱電学会　評議員

2010/08 - 2012/06
応用物理学会　講演会企画運営委員会委員

2010/05 - 2012/04
応用物理学会　講演奨励賞委員会委員

2010/05 - 2012/04
応用物理学会　プログラム編集委員

2008/04 - 2012/04
日本熱電学会　講演会委員

2009/05 - 2010/09
応用物理学会東北支部　会計監査

2008/01 - 2009/12
日本熱電学会　講演会現地実行委員

2009/05 - 2009/08
応用物理学会　代議員

2006/02 - 2009/02
応用物理学会東北支部　会計幹事

2006/01 - 2007/12
IUCr Aperiodic mission　組織委員

2005/07 -

Show all ︎Show first 5

Professional Memberships 3

応用物理学会
The Thermoelectrics Society of Japan
International thermoelectric society

Research Interests 4

Electrochemical deposition of bulk materials
複合結晶
Thermoelectric Materials
機能性酸化物

Research Areas 2

Nanotechnology/Materials / Structural and functional materials / 機能材料
Nanotechnology/Materials / Inorganic materials / Inorganic Materials and Properties

Awards 12

The ICT2024 Outstanding Poster Prize

2024/06　International Thermoelectric Society　First-Principles Study for High Thermoelectric Performance Iron-based Half Heusler Compounds with Thermodynamic and Mechanical Stability
The Award for Outstanding Poster Presentation

2023/09　European Thermoelectric Society　Preparation and thermoelectric properties of nonstoichiometric full‐Heusler Mn2+xV1-xAl alloys
学術賞

2018/09　Thermoelectrics Society of Japan
ITS Poster Award

2018/07　International Thermoelectric Society　Effects of Cu-substitution on Theremoelectric Properties of Pseudogap Ternary Intermetallic Compound TiNiSi
2018 ITS Poster Award

2018/07　International Thermoelectric Society　Effect of Lattice Defects on the Seebeck Coefficient of Mg2Sn
第14回学術講演会優秀ポスター賞

2017/09　Thermoelectric Properties of TiNiSi-based Solid Solutions
貴金属に関わる研究助成金 MMS賞

2016/03/31　田中貴金属記念財団
第68回応用物理学会東北支部学術講演会支部講演奨励賞

2013/12　応用物理学会東北支部
The 32nd International Conference on Thermoelectrics Portopia Award

2013/07　International Thermoelectric Society
原田研究奨励賞

2002/10/31　金属助成会
日本金属学会奨励賞

1995/12　日本金属学会
本多記念研究奨励賞

1995/05　本多記念会

Show all ︎Show 5

Papers 211

Data-driven approach for potential iron-based half-Heusler thermoelectrics with chemical bonding characteristics

Kei Hayashi, Yuzuru Miyazaki, Xue Nan, Zhicheng Huang

Science Advances　2025/06/27

DOI： 10.1126/sciadv.adw4514 　
Dislocation Introduction via Domain Engineering in Mg₂Sn Single Crystal to Improve its Thermoelectric Properties

Zhicheng Huang, Kei Hayashi, Wataru Saito, Hezhang Li, Jun Pei, Jinfeng Dong, Toshiaki Chiba, Xue Nan, Bo‐Ping Zhang, Jing‐Feng Li, Yuzuru Miyazaki

Small Methods　2025/03/26
Publisher: Wiley
DOI： 10.1002/smtd.202500385 　

ISSN： 2366-9608

eISSN： 2366-9608

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Abstract Dislocations have increasingly become important for improving the thermoelectric properties of thermoelectric materials due to their more pronounced scattering effect on phonons than on carriers. This study combined the introduction of the dislocation cores through domain engineering with the generation of Mg vacancies (V_Mg) by controlling point defects to achieve low lattice thermal conductivity and high power factor in n‐type and p‐type Mg₂Sn single crystals (SCs). The V_Mg domain with ordered atomic arrangements allowed carrier transport with minimal scattering, while the high dislocation density at the interface effectively scattered phonons, thereby decoupling carrier‐phonon transport. This resulted in obtaining the peak zT values of 0.83(8) and 0.42(4) for n‐type and p‐type Mg₂Sn SCs, respectively. The outstanding combination of domain engineering and point defect control techniques could be a strategy for developing high‐performance thermoelectric materials.
Preparation, Crystal Structure and Electrochemical Properties of Mg1-X Cu2+X O3

Kazuma Uehara, Zhou Zihan, Zhicheng Huang, Kei Hayashi, Yuzuru Miyazaki

ECS Meeting Abstracts　2024/11/22

DOI： 10.1149/MA2024-0291345mtgabs 　
Preparation and Electrochemical Properties of α-MgCu2O3

Yuzuru Miyazaki, Kazuma Uehara, Zhou Zihan, Zhicheng Huang, Kei Hayashi

ECS Meeting Abstracts　2024/11/22

DOI： 10.1149/MA2024-0291444mtgabs 　
Insights into enhanced thermoelectric performance of the n-type Mg3Sb2-based materials by amphoteric Al doping

Qiang Zhang, Huijun Li, Nagendra S. Chauhan, Lifei Wang, Wenhao Fan, Shaoping Chen, Jianfeng Fan, Yuzuru Miyazaki

Materials Today Energy　44　101656-101656　2024/08
Publisher: Elsevier BV
DOI： 10.1016/j.mtener.2024.101656 　

ISSN： 2468-6069
Ultralow thermal conductivity and high ZT of Cu2Se-based thermoelectric materials mediated by TiO2−n nanoclusters International-journal International-coauthorship Peer-reviewed

Jincheng Yu, Xiaodong Liu, Haihua Hu, Yilin Jiang, Hua-Lu Zhuang, Hezhang Li, Bin Su, Jing-Wei Li, Zhanran Han, Zhengqin Wang, Lu Chen, Kei Hayashi, Yuzuru Miyazaki, B. Layla Mehdi, Jing-Feng Li

Joule　2024/07/01

DOI： 10.1016/j.joule.2024.06.007 　
Odd-Stoichiometry and Secondary Phase Relations in Higher Manganese Silicides

Nagendra Singh Chauhan, Shivalingam Goud Sara, Amrita Bhattacharya, Takao Mori, Yuzuru Miyazaki

Advanced Functional Materials　34　(17)　2024/04/25

DOI： 10.1002/adfm.202313948 　

ISSN： 1616-301X

eISSN： 1616-3028
Sr-Substitution Effects on Crystal Structure and Thermoelectric Properties of Misfit Layered Cobaltate, [Ca2CoO3] CoO2

Y. Shimizu, K. Hayashi, Y. Miyazaki

Solid State Sciences　107536-107536　2024/04
Publisher: Elsevier BV
DOI： 10.1016/j.solidstatesciences.2024.107536 　

ISSN： 1293-2558
Understanding Anisotropy and Its Relations with Sintering Conditions on Thermoelectric Transport Properties of n-Type Mg₃Sb₂-Based Materials

Xingchen Gao, Lianglu Hu, Nagendra Singh Chauhan, Zhaohui Shan, Qiang Zhang, Jianfeng Fan, Yuzuru Miyazaki

ACS Applied Energy Materials　7　(3)　862-867　2024/01/25
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsaem.3c02703 　

ISSN： 2574-0962

eISSN： 2574-0962
Enhancement of the thermoelectric performance of half-metallic full-heusler Mn2VAl alloys via antisite defect engineering and Si partial substitution

Hezhang Li, Kei Hayashi, Zhicheng Huang, Hiroto Takeuchi, Gakuto Kanno, Jing-Feng Li, Yuzuru Miyazaki

Journal of Materiomics　2023/12
Publisher: Elsevier BV
DOI： 10.1016/j.jmat.2023.11.013 　

ISSN： 2352-8478
Higher manganese silicides: A Nowotny chimney ladder phase for thermoelectric applications

Nagendra S. Chauhan, Yuzuru Miyazaki

Chemical Physics Reviews　4　(4)　2023/10/23
Publisher: AIP Publishing
DOI： 10.1063/5.0167220 　

eISSN： 2688-4070

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Nowotny chimney ladder (NCL) phases are intermetallic binary compounds that typically crystallize in a tetragonal crystal structure and constitute of two separate subsystems. The rich solid-state chemistry of NCL phases inherits fascinating lattice dynamics with unique abilities for structural modifications. As an extensively studied energy material for the thermoelectric application, we overview the emerging aspects for structural interpretation in higher manganese silicides (MnSiγ), a prominently explored example of NCL phase. The progress in understanding the incommensurate composite crystals of MnSiγ is discussed to highlight its functional crystallography for proposing the effective strategies to attain favorable modification of transport properties of charge carriers (concentration, mobility, effective mass), and phonons (lattice thermal conductivity). The application potential and prospective strategies for enabling the rational optimization of the dimensionless thermoelectric figure of merit (zT) are examined, and the possibilities of chemical modification in MnSiγ and related NCL phases are presented.
Discordant Doping and Labile Silicon Atoms in Higher Manganese Silicide

Nagendra Singh Chauhan, Yuzuru Miyazaki

ACS Applied Energy Materials　6　(23)　11828-11837　2023/09/20
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsaem.3c01674 　

ISSN： 2574-0962

eISSN： 2574-0962
Bi‐Deficiency Leading to High‐Performance in Mg₃(Sb,Bi)₂‐Based Thermoelectric Materials

Jing‐Wei Li, Weishu Liu, Wei Xu, Hua‐Lu Zhuang, Zhijia Han, Feng Jiang, Peng Zhang, Haihua Hu, Hanbin Gao, Yilin Jiang, Bowen Cai, Jun Pei, Bin Su, Qian Li, Kei Hayashi, Hezhang Li, Yuzuru Miyazaki, Xingzhong Cao, Qiang Zheng, Jing‐Feng Li

Advanced Materials　35　(23)　2023/04/25
Publisher: Wiley
DOI： 10.1002/adma.202209119 　

ISSN： 0935-9648

eISSN： 1521-4095
Effects of Oxygen on Lattice Defects in Single-Crystalline Mg2Si Thermoelectrics

Kei Hayashi, Sota Kawamura, Yusuke Hashimoto, Noboru Akao, Zhicheng Huang, Wataru Saito, Kaichi Tasaki, Koichi Hayashi, Tomohiro Matsushita, Yuzuru Miyazaki

Nanomaterials　13　(7)　1222-1222　2023/03/30
Publisher: MDPI AG
DOI： 10.3390/nano13071222 　

eISSN： 2079-4991

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Lattice defect engineering has attracted attention due to its ability to develop thermoelectric materials with low thermal conductivity. For Mg2Si single crystals (SCs), Si vacancy (VSi) defects can be introduced and consequently result in the formation of dislocation cores. These lattice defects confer Mg2Si SCs with a lower thermal conductivity compared to Mg2Si polycrystals. To reveal a mechanism for the stabilisation of VSi in the Mg2Si SCs, we investigated the effects of oxygen (O) on lattice defects by performing electronic structure calculations, secondary ion mass spectrometry, X-ray photoelectron spectroscopy, and photoelectron holography. On the basis of these calculations, we predicted that O stabilised the formation of VSi when it was located at the Si site or at an interstitial site. All experiments confirmed the presence of O inside the Mg2Si SCs. However, O was suggested to be located not at the specific site in the crystal lattice of Mg2Si but at dislocation cores. The interaction between O and the dislocation cores in the Mg2Si SC is expected to immobilise dislocation cores, leading to the stabilisation of VSi formation.
Charge-Compensated (V, Ru) Co-Substitution in Higher Manganese Silicide Single Crystals for Enhanced Thermoelectric and Mechanical Performance

Nagendra Singh Chauhan, Ichiro Ono, Kei Hayashi, Yuzuru Miyazaki

ACS Applied Energy Materials　2023/03/15
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsaem.2c03803 　

ISSN： 2574-0962

eISSN： 2574-0962
Anisotropic correlations in higher manganese silicides International-journal Peer-reviewed

Nagendra S. Chauhan, Ichiro Ono, Kei Hayashi, Yuzuru Miyazaki

Journal of Alloys and Compounds　935　167983-167983　2023/02
Publisher: Elsevier BV
DOI： 10.1016/j.jallcom.2022.167983 　

ISSN： 0925-8388
Lattice anharmonicity in charge compensated higher manganese silicide single crystals

Nagendra Singh Chauhan, Ichiro Ono, Yuzuru Miyazaki

Journal of Materials Chemistry A　11　(35)　19107-19117　2023
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d3ta02985a 　

ISSN： 2050-7488

eISSN： 2050-7496

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Lattice anharmonicity driven by weakening interatomic interactions inherits an intrinsically low lattice thermal conductivity in a crystal.
Graphene-assisted synergistic electronic DOS modulation and phonon scattering to improve the thermoelectric performance of Mg₃Sb₂-based materials

Qiang Zhang, Jiadang Li, Nagendra S. Chauhan, Lifei Wang, Zhicheng Huang, Wenhao Fan, Kei Hayashi, Shaoping Chen, Jianfeng Fan, Yuzuru Miyazaki

Journal of Materials Chemistry A　2023
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d3ta02431h 　

ISSN： 2050-7488

eISSN： 2050-7496

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A large electronic density of states (DOS) coupled with homogeneous charge distribution can effectively improve the electrical conductivity σ and thus, the thermoelectric figure of merit ZT.
Enhanced thermoelectric performance of p-type Mg₂Sn single crystals via multi-scale defect engineering

Zhicheng Huang, Kei Hayashi, Wataru Saito, Jun Pei, Jing-Feng Li, Yuzuru Miyazaki

Journal of Materials Chemistry A　2023
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2ta08557g 　

ISSN： 2050-7488

eISSN： 2050-7496

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Multi-scale defects in Li-doped Mg₂Sn single crystals effectively reduce thermal conductivity. The highest dimensionless figure-of-merit zT among p-type Mg₂Sn is achieved (zT ∼ 0.38 at 700 K).
Iron‐based Semiconducting Half‐Heusler Alloys for Thermoelectric Applications

Nagendra S. Chauhan, Yuzuru Miyazaki

ChemNanoMat　9　(1)　2022/12/15
Publisher: Wiley
DOI： 10.1002/cnma.202200403 　

ISSN： 2199-692X

eISSN： 2199-692X

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Abstract Iron‐based half‐Heusler alloys constitute an emerging class of semiconducting intermetallics for scalable and efficient thermoelectric conversion, owing to their remarkably high‐power factor, abundance, and low cost. This review encompasses the recent advances in materials synthesis and evolving aspects of optimization pathways in pre‐existing Fe‐based half‐Heusler compositions for attaining a higher thermoelectric figure of merit (zT). The experimental outcomes and theoretical predictions were analyzed and compared using a parametric framework to understand the underlying electronic transport responsible for high power factors exhibited by most of these alloys distinctively. Alongside, effective microstructural approaches were reviewed for which favorable reduction in intrinsically high lattice thermal conductivity (κ_L) was attained. The electronic structures of MFeSb (M=V, Nb, and Ta) half‐Heuslers is also analyzed using density functional theory‐based calculations to understand the origin of favorable conduction and electrical transport properties. Finally, processing‐structural‐property correlations are discussed to highlight the relevance of structural ordering, phase transformation, and defects on transport properties, for developing effective strategies and material design in Fe‐based half‐Heuslers for their development in thermoelectrics.
Thermoelectric Transport Properties of Double-Filling InxLa0.25Co4Sb12 Skutterudite Materials

Mohamed Bashir Ali Bashir, Ethar Yahya Salih, Suhana Mohd Said, Yuzuru Miyazaki, Dhafer Abdul-Ameer Shnawah, M. Nasir Bashir, Imran Haider Sajid, Mohamed Hamid Elsheikh

Journal of Electronic Materials　52　(2)　971-979　2022/12/05
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s11664-022-10083-1 　

ISSN： 0361-5235

eISSN： 1543-186X
Low Lattice Thermal Conductivity in a Wider Temperature Range for Biphasic-Quaternary (Ti,V)CoSb Half-Heusler Alloys

Nagendra S. Chauhan, Dipanwita Bhattacharjee, Tanmoy Maiti, Yury V. Kolen’ko, Yuzuru Miyazaki, Amrita Bhattacharya

ACS Applied Materials & Interfaces　14　(49)　54736-54747　2022/11/30
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsami.2c16595 　

ISSN： 1944-8244

eISSN： 1944-8252
Relevance of Solidification Kinetics for Enhanced Thermoelectric Performance in Al-Doped Higher Manganese Silicides International-journal Peer-reviewed

Nagendra S. Chauhan, Ichiro Ono, Kei Hayashi, Yuzuru Miyazaki

ACS Applied Materials & Interfaces　14　(46)　51983-51993　2022/11/23
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsami.2c16107 　

ISSN： 1944-8244

eISSN： 1944-8252
Enhancement of thermoelectric properties at room temperature through isoelectronic ruthenium-substitution in n-type half-Heusler VFeSb compounds

Yi Huang, Kei Hayashi, Yuzuru Miyazaki

Acta Materialia　237　2022/09/15

DOI： 10.1016/j.actamat.2022.118186 　

ISSN： 1359-6454
Contrasting role of bismuth doping on the thermoelectric performance of VFeSb half-Heusler

Nagendra S. Chauhan, Yuzuru Miyazaki

Journal of Alloys and Compounds　908　2022/07/05

DOI： 10.1016/j.jallcom.2022.164623 　

ISSN： 0925-8388
Low lattice thermal conductivity and microstructural evolution in VFeSb half-Heusler alloys Peer-reviewed

Nagendra S. Chauhan, Yuzuru Miyazaki

Materialia　2022/05

DOI： 10.1016/j.mtla.2022.101430 　
A mechanistic view of defect engineered VFeSb half-Heusler alloys

Nagendra S. Chauhan, Yuzuru Miyazaki

Materials Advances　3　(23)　8498-8511　2022
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2ma00777k 　

eISSN： 2633-5409

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Stoichiometric alteration induces characteristic granular defects in VFeSb half-Heusler microstructure.
Realizing p-type Mg2Sn Thermoelectrics via Ga-Doping and Point Defect Engineering Peer-reviewed

Zhicheng Huang, Kei Hayashi, Wataru Saito, Yuzuru Miyazaki

ACS Applied Energy Materials　2021/11/22
Publisher: American Chemical Society ({ACS})
DOI： 10.1021/acsaem.1c02678 　

ISSN： 2574-0962

eISSN： 2574-0962
Crystal structure, microstructure, and electronic transport properties of β-Zn4Sb3 thermoelectrics: effects of Zn intercalation and deintercalation Peer-reviewed

S. Yoshioka, K. Hayashi, A. Yokoyama, W. Saito, Y. Miyazaki

Materials Today Energy　21　100723-100723　2021/09
Publisher: Elsevier {BV}
DOI： 10.1016/j.mtener.2021.100723 　

ISSN： 2468-6069
Outstanding thermoelectric performance of n-type half-Heusler V(Fe_1-xCo_x)Sb compounds at room-temperature Peer-reviewed

Yuzuru Miyazaki

Acta Materialia　215　117022-117022　2021/08

DOI： 10.1016/J.ACTAMAT.2021.117022 　

ISSN： 1359-6454

eISSN： 1873-2453
Incommensurately modulated crystal structure of α′ (O′3)-type sodium cobalt oxide Na x CoO2 (x ∼ 0.78) Peer-reviewed

Yuzuru Miyazaki, Naoki Igawa, Kunio Yubuta

Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials　77　(3)　371-377　2021/06/01
Publisher: International Union of Crystallography ({IUCr})
DOI： 10.1107/S205252062100370X 　

eISSN： 2052-5206

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A single-phase sample of α′ (O′3)-type layered sodium cobalt oxide Na_{<italic>x</italic>}CoO₂ (<italic>x</italic> ∼ 0.78) was prepared and its incommensurately modulated crystal structure was analyzed using the (3+1)-dimensional superspace approach to the powder neutron diffraction data. The crystal structure of the cobaltate is accurately described based on the superspace group <italic>C</italic>2/<italic>m</italic>(α0γ)00, wherein the positions of Na atoms are most significantly modulated in the monoclinic <bold>a</bold> direction to form an ordered arrangement. Such a displacive modulation causes a quasi-periodic shift of Na atoms from the centers of the NaO₆ polyhedra between undulated CoO₂ sheets, changing the form of the NaO₆ polyhedron from an octahedral coordination (O) to a trigonal prismatic (P) one, via an intermediate capped trigonal prismatic NaO₇ coordination (C). At the positions where the Na atoms are most significantly shifted, the neighboring Na atoms are located at almost touching distances. However, the occupation factor of Na atoms becomes zero at such positions, yielding Na-deficient sites <italic>V</italic> _Na, sandwiched either between C and P, or C and C-type polyhedra.
Effects of Disorder on the Electronic Structure and Thermoelectric Properties of an Inverse Full-Heusler Mn2CoAl Alloy Peer-reviewed

Hezhang Li, Kei Hayashi, Yoshimi Nagashima, Shun Yoshioka, Jinfeng Dong, Jing-Feng Li, Yuzuru Miyazaki

Chemistry of Materials　33　(7)　2543-2547　2021/04/13
Publisher: American Chemical Society ({ACS})
DOI： 10.1021/acs.chemmater.0c04902 　

ISSN： 0897-4756

eISSN： 1520-5002
High‐Density Frenkel Defects as Origin of N‐Type Thermoelectric Performance and Low Thermal Conductivity in Mg 3 Sb 2 ‐Based Materials Peer-reviewed

Tsutomu Kanno, Hiromasa Tamaki, Masato Yoshiya, Hiroshi Uchiyama, Sachiko Maki, Masaki Takata, Yuzuru Miyazaki

Advanced Functional Materials　31　(13)　2008469-2008469　2021/03/20
Publisher: Wiley
DOI： 10.1002/adfm.202008469 　

ISSN： 1616-301X

eISSN： 1616-3028
Erratum: “Preparation, thermoelectric properties, and crystal structure of boron-doped Mg2Si single crystals” [AIP Advances 10, 035115 (2020)]

Kei Hayashi, Wataru Saito, Kazuya Sugimoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Yuzuru Miyazaki

AIP Advances　11　(2)　029903-029903　2021/02/01
Publisher: {AIP} Publishing
DOI： 10.1063/5.0045729 　
Chemical-Pressure-Induced Point Defects Enable Low Thermal Conductivity for Mg2Sn and Mg2Si Single Crystals Peer-reviewed

Saito, Wataru, Hayashi, Kei, Huang, Zhicheng, Sugimoto, Kazuya, Ohoyama, Kenji, Happo, Naohisa, Harada, Masahide, Oikawa, Kenichi, Inamura, Yasuhiro, Hayashi, Kouichi, Miyazaki, Takamichi, Miyazaki, Yuzuru

ACS Applied Energy Materials　4　(5)　5123-5131　2021

DOI： 10.1021/ACSAEM.1C00670 　

ISSN： 2574-0962

eISSN： 2574-0962
Relationships between crystallite size and thermoelectric properties of nano-structured CrSi2 prepared by the reduction-diffusion and spark plasma sintering methods Peer-reviewed

Nakasawa, Hayato, Takamatsu, Tomohisa, Hayashi, Kei, Miyazaki, Yuzuru

Journal of Alloys and Compounds　861　157967-157967　2021

DOI： 10.1016/J.JALLCOM.2020.157967 　

ISSN： 0925-8388
Enhanced thermoelectric performance in MnTe due to doping and in-situ nanocompositing effects by Ag2S addition Peer-reviewed

Dong, Jinfeng, Pei, Jun, Hayashi, Kei, Saito, Wataru, Li, Hezhang, Cai, Bowen, Miyazaki, Yuzuru, Li, Jing-Feng

Journal of Materiomics　7　(3)　577-584　2021

DOI： 10.1016/J.JMAT.2020.11.007 　

ISSN： 2352-8478
Enhancing the Thermoelectric Performance of Mg2Sn Single Crystals via Point Defect Engineering and Sb Doping Peer-reviewed

Wataru Saito, Kei Hayashi, Zhicheng Huang, Jinfeng Dong, Jing-Feng Li, Yuzuru Miyazaki

ACS Applied Materials & Interfaces　12　(52)　57888-57897　2020/12/30
Publisher: American Chemical Society ({ACS})
DOI： 10.1021/acsami.0c17462 　

ISSN： 1944-8244

eISSN： 1944-8252
Electron Conduction Mechanism of Deficient Half-Heusler VFeSb Compound Revealed by Crystal and Electronic Structure Analyses Peer-reviewed

Yi Huang, Kei Hayashi, Yuzuru Miyazaki

Chemistry of Materials　32　(12)　5173-5181　2020/06/23
Publisher: American Chemical Society ({ACS})
DOI： 10.1021/acs.chemmater.0c01189 　

ISSN： 0897-4756

eISSN： 1520-5002
Off-stoichiometry effect on thermoelectric properties of the new p-type sulfides compounds Cu2CoGeS4

Cédric Bourgès, Rabih Al Rahal Al Orabi, Yuzuru Miyazaki

Journal of Alloys and Compounds　826　2020/06/15
Publisher: Elsevier Ltd
DOI： 10.1016/j.jallcom.2020.154240 　

ISSN： 0925-8388
Distinct impact of order degree on thermoelectric power factor of p-type full-Heusler Mn2VAl compounds Peer-reviewed

Hezhang Li, Kei Hayashi, Jinfeng Dong, Jing-Feng Li, Yuzuru Miyazaki

Materials Research Express　7　(5)　055503　2020/05/04
Crystal structure and thermoelectric properties of partially-substituted melt-grown higher manganese silicides Peer-reviewed

Yuzuru Miyazaki

Japanese Journal of Applied Physics　59　({SF})　2020/04/01
Publisher: {IOP} Publishing
DOI： 10.35848/1347-4065/ab709e 　
Preparation, thermoelectric properties, and crystal structure of boron-doped Mg2Si single crystals Peer-reviewed

Kei Hayashi, Wataru Saito, Kazuya Sugimoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Yuzuru Miyazaki

AIP Advances　10　(3)　035115-035115　2020/03/01
Publisher: {AIP} Publishing
DOI： 10.1063/1.5143839 　

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Mg2Si is a potential thermoelectric (TE) material that can directly convert waste energy into electricity. In expectation of improving its TE performance by increasing electron carrier concentration, the element boron (B) is doped in Mg2Si single crystals (SCs). Their detailed crystal structures are definitely determined by using white neutron holography and single-crystal x-ray diffraction (SC-XRD) measurements. The white neutron holography measurement proves that the doped B atom successfully substitutes for the Mg site. The SC-XRD measurement confirms the B-doping site and also reveals the presence of the defect of Si vacancy (VSi) in the B-doped Mg2Si SCs. The fraction of VSi increases with increasing B-doping concentration. In the case of B-doped Mg2Si polycrystals (PCs), VSi is absent; this difference between the SCs and PCs can be attributed to different preparation temperatures. Regarding TE properties, the electrical conductivity, σ, and the Seebeck coefficient, S, decreases and increases, respectively, due to the decrease in the electron carrier concentration, contrary to the expectation. The power factor of the B-doped Mg2Si SCs evaluated from σ and S does not increase but rather decreases by the B-doping. The tendencies of these TE properties can be explained by considering that the donor effect of the B atom is canceled by the acceptor effect of VSi for the B-doped Mg2Si SCs. This study demonstrates that the preparation condition of Mg2Si should be optimized to prevent the emergence of an unexpected point defect.
Control of the Thermoelectric Properties of Mg2Sn Single Crystals via Point-Defect Engineering International-journal International-coauthorship Peer-reviewed

Yuzuru Miyazaki

Scientific Reports　10　2020　2020/02

DOI： 10.1038/S41598-020-58998-1 　
Tailoring the thermoelectric and structural properties of Cu-Sn based thiospinel compounds [CuM1+xSn1-xS4 (M = Ti, V, Cr, Co)] Peer-reviewed

Bourges, Cedric, Srinivasan, Bhuvanesh, Fontaine, Bruno, Sauerschnig, Philipp, Minard, Alizee, Halet, Jean-Francois, Miyazaki, Yuzuru, Berthebaud, David, Mori, Takao

Journal of Materials Chemistry C　8　(46)　2020

DOI： 10.1039/D0TC04393A 　

ISSN： 2050-7526

eISSN： 2050-7534
Crystal structure, electronic structure and thermoelectric properties of β- and γ-Zn4Sb3 thermoelectrics: a (3 + 1)-dimensional superspace group approach Peer-reviewed

Shun Yoshioka, Kei Hayashi, Aisaku Yokoyama, Wataru Saito, Hezhang Li, Tomohisa Takamatsu, Yuzuru Miyazaki

Journal of Materials Chemistry C　2020
Publisher: Royal Society of Chemistry ({RSC})
DOI： 10.1039/D0TC01497D 　

ISSN： 2050-7526

eISSN： 2050-7534

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<p>Using a (3 + 1)-dimensional ((3 + 1)-D) superspace group approach, a composite crystal structure model for β- and γ-phases of Zn₄Sb₃ is constructed. Intercalation of Zn atoms into the Zn_i site is found, which affects thermoelectric properties.</p>
Design and power generation of tilted Cu/Fe<inf>2</inf>V(Al<inf>0.9</inf>Si<inf>0.1</inf>) multilayers via the transverse thermoelectric effect Invited Peer-reviewed

Kodaira, N., Miyazaki, Y., Hayashi, K.

Journal of Applied Physics　126　(4)　045108-045108　2019/07/28
Publisher: AIP Publishing
DOI： 10.1063/1.5103226 　

ISSN： 0021-8979

eISSN： 1089-7550
Aqueous Chemical Synthesis and Consolidation of Size-Controlled Bi<inf>2</inf>Te<inf>3</inf> Nanoparticles for Low-Cost and High-Performance Thermoelectric Materials Peer-reviewed

Nakamoto, T., Yokoyama, S., Takamatsu, T., Harata, K., Motomiya, K., Takahashi, H., Miyazaki, Y., Tohji, K.

Journal of Electronic Materials　48　(5)　2700-2711　2019/05
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s11664-019-06935-y 　

ISSN： 0361-5235

eISSN： 1543-186X
Role of cobalt for titanium substitution on the thermoelectric properties of the thiospinel CuTi<inf>2</inf>S<inf>4</inf> Peer-reviewed

Bourg{\`e}s, C., Pavan Kumar, V., Nagai, H., Miyazaki, Y., Raveau, B., Guilmeau, E.

Journal of Alloys and Compounds　781　1169-1174　2019/04
Publisher: Elsevier BV
DOI： 10.1016/j.jallcom.2018.12.102 　

ISSN： 0925-8388
Reducing Lattice Thermal Conductivity of MnTe by Se Alloying toward High Thermoelectric Performance Peer-reviewed

Dong, J., Sun, F.-H., Tang, H., Hayashi, K., Li, H., Shang, P.-P., Miyazaki, Y., Li, J.-F.

ACS Applied Materials and Interfaces　11　(31)　2019

DOI： 10.1021/acsami.9b10207 　
Preparation and thermoelectric properties of pseudogap intermetallic (Ti<inf>1-x</inf>V<inf>x</inf>)NiSi solid solutions Peer-reviewed

Huang, Y., Nagai, H., Hayashi, K., Miyazaki, Y.

Journal of Alloys and Compounds　771　111-116　2019/01
Publisher: Elsevier BV
DOI： 10.1016/j.jallcom.2018.08.238 　

ISSN： 0925-8388
Optimised thermally driven molecular stability of an SCO metal complex for TEC Seebeck generation enhancement Peer-reviewed

Megat Hasnan, M.M.I., Mohd Said, S., Mohd Sabri, M.F., Mat Hussin, S.A., Abdullah, N., Nik Ibrahim, N.M.J., Miyazaki, Y., Mohd Salleh, M.F., Mohd Shah, N.

RSC Advances　9　(19)　2019

DOI： 10.1039/c9ra00779b 　
Lattice dynamics and lattice thermal conductivity of CrSi 2 calculated from first principles and the phonon Boltzmann transport equation Peer-reviewed

Nakasawa, H., Hayashi, K., Takamatsu, T., Miyazaki, Y.

Journal of Applied Physics　126　(2)　2019

DOI： 10.1063/1.5096458 　
Effects of Cobalt Substitution on Crystal Structure and Thermoelectric Properties of Melt-Grown Higher Manganese Silicides Peer-reviewed

Nagai, H., Hamada, H., Hayashi, K., Miyazaki, Y.

Journal of Electronic Materials　48　(4)　2019

DOI： 10.1007/s11664-019-06958-5 　
Thermoelectric Properties of Mo and Ge co-substituted CrSi2 Peer-reviewed

Hayato Nakasawa, Tomohisa Takamatsu, Yoshihiko Iijima, Kei Hayashi, Yuzuru Miyazaki

Transactions of the Materials Research Society of Japan　43　(2)　85-91　2018/04

DOI： 10.14723/tmrsj.43.85 　
Thermoelectric properties of olivine-type sulfides Tm2XS4 (Tm = Mn, Fe, X = Si, Ge) Peer-reviewed

Hiroki Nagai, Kei Hayashi, Yuzuru Miyazaki

Transactions of the Materials Research Society of Japan　43　(1)　13-17　2018/02

DOI： 10.14723/tmrsj.43.13 　

ISSN： 1382-3469
Enhancement of average thermoelectric figure of merit by increasing the grain-size of Mg3.2Sb1.5Bi0.49Te0.01 Peer-reviewed

Tsutomu Kanno, Hiromasa Tamaki, Hiroki K. Sato, Stephen Dongmin Kang, Saneyuki Ohno, Kazuki Imasato, Jimmy Jiahong Kuo, G. Jeffrey Snyder, Yuzuru Miyazaki

Applied Physics Letters　112　(3)　033903-033903　2018/01/15

DOI： 10.1063/1.5016488 　

ISSN： 0003-6951

eISSN： 1077-3118
Improved thermoelectric performance from CrSi<inf>2</inf> by Cu substitution into Si sites Peer-reviewed

Nagai, H., Takamatsu, T., Iijima, Y., Hayashi, K., Miyazaki, Y.

Japanese Journal of Applied Physics　57　(12)　2018

DOI： 10.7567/JJAP.57.121801 　
Fabrication and thermoelectric properties of Al/Mg<inf>2</inf>Si composite materials Peer-reviewed

Hayashibara, Y., Hayashi, K., Ando, I., Kubouchi, M., Ogawa, Y., Saito, W., Miyazaki, Y.

Materials Transactions　59　(7)　2018

DOI： 10.2320/matertrans.E-M2018815 　
High-Performance Thermoelectric Bulk Colusite by Process Controlled Structural Disordering Peer-reviewed

Bourgès, C., Bouyrie, Y., Supka, A.R., Al Rahal Al Orabi, R., Lemoine, P., Lebedev, O.I., Ohta, M., Suekuni, K., Nassif, V., Hardy, V., Daou, R., Miyazaki, Y., Fornari, M., Guilmeau, E.

Journal of the American Chemical Society　140　(6)　2186-2195　2018

DOI： 10.1021/jacs.7b11224 　

ISSN： 0002-7863
In-Filled La<inf>0.5</inf>Co<inf>4</inf>Sb<inf>12</inf> Skutterudite System with High Thermoelectric Figure of Merit Peer-reviewed

Bashir, M.B.A., Said, S.M., Sabri, M.F.M., Miyazaki, Y., Shnawah, D.A., Shimada, M., Salleh, M.F.M., Mahmood, M.S., Salih, E.Y., Fitriani, F., Elsheikh, M.H.

Journal of Electronic Materials　47　(4)　2429-2438　2018

DOI： 10.1007/s11664-018-6074-3 　

ISSN： 0361-5235
Enhancement of thermoelectric properties of Yb<inf>0.25</inf>Co<inf>4</inf>Sb<inf>12</inf> skutterudites through Ni substitution Peer-reviewed

Bashir, M.B.A., Said, S.M., Sabri, M.F.M., Miyazaki, Y., Shnawah, D.A.A., Shimada, M., Elsheikh, M.H.

Sains Malaysiana　47　(1)　181-187　2018

DOI： 10.17576/jsm-2018-4701-21 　

ISSN： 0126-6039
Design and fabrication of full-Heusler compound with positive Seebeck coefficient as a potential thermoelectric material Peer-reviewed

Li, H., Hayashi, K., Miyazaki, Y.

Scripta Materialia　150　130-133　2018

DOI： 10.1016/j.scriptamat.2018.03.018 　

ISSN： 1359-6462
Crystal structure and thermoelectric properties of lightly substituted higher manganese silicides Peer-reviewed

Miyazaki, Y., Hamada, H., Nagai, H., Hayashi, K.

Materials　11　(6)　2018

DOI： 10.3390/ma11060926 　

ISSN： 1996-1944
Pyroelectric Energy Harvesting Using Ferroelectric Ba<inf>1−x</inf>Ca<inf>x</inf>TiO<inf>3</inf> Peer-reviewed

Hayashi, K., Aikawa, E., Ueno, T., Kajitani, T., Miyazaki, Y.

Physica Status Solidi (A) Applications and Materials Science　215　(11)　2018

DOI： 10.1002/pssa.201701002 　

ISSN： 1862-6300
Preparation and optical properties of higher manganese silicide, (Mn,Fe)Si-gamma, thin films Peer-reviewed

Ryosuke Honda, Chihiro Kawasaki, Kentaro Ishii, Kei Hayashi, Yuzuru Miyazaki

Applied Surface Science　458　700-704　2018

DOI： 10.1016/J.APSUSC.2018.07.141 　

ISSN： 0169-4332
Structural and thermoelectric properties of TTF-I<inf>0.71</inf> organic compound Peer-reviewed

Hayashi, K., Kuba, K., Miyazaki, Y.

Physica Status Solidi (B) Basic Research　254　(2)　2017

DOI： 10.1002/pssb.201600513 　
Crystal Structure and Thermoelectric Properties of Lightly Vanadium-Substituted Higher Manganese Silicides (Mn<inf>1−x</inf>V<inf>x</inf>)Si<inf>γ</inf>) Peer-reviewed

Miyazaki, Y., Hamada, H., Hayashi, K., Yubuta, K.

Journal of Electronic Materials　46　(5)　2705-2709　2017

DOI： 10.1007/s11664-016-4937-z 　

ISSN： 0361-5235
Structural and Thermoelectric Properties of Ternary Full-Heusler Alloys Peer-reviewed

Hayashi, K., Eguchi, M., Miyazaki, Y.

Journal of Electronic Materials　46　(5)　2710-2716　2017

DOI： 10.1007/s11664-016-4944-0 　
Polymer electrolyte liquid crystal mixtures as phase-dependent thermoelectric materials Peer-reviewed

Said, S.M., Sahamir, S.R., Sabri, M.F.M., Kamarudin, M.A., Hayashi, K., Zulkifli, A.Z.S., Nakajo, T., Kubouchi, M., Miyazaki, Y.

Molecular Crystals and Liquid Crystals　642　(1)　9-17　2017

DOI： 10.1080/15421406.2016.1262668 　
Preparation and thermoelectric properties of mixed valence compound Sn2S3 Peer-reviewed

Saito, W., Hayashi, K., Nagai, H., Miyazaki, Y.

Japanese Journal of Applied Physics　56　(6)　061201　2017

DOI： 10.7567/JJAP.56.061201 　
Enhanced thermoelectric properties of chimney-ladder type higher manganese silicides Peer-reviewed

Miyazaki, Y., Hamada, H., Kikuchi, Y., Hayashi, K.

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy　64　(8)　461　2017

DOI： 10.2497/jjspm.64.461 　
Structural and thermoelectric properties of TTF-I _0.71 organic compound Peer-reviewed

Kento Kuba, Yuzuru Miyazaki, Kei Hayashi

Physica Status Solidi (B)　254　(2)　2017

DOI： 10.1002/PSSB.201600513 　
Rapid preparation of bulk Al <inf>x</inf> Yb <inf>0.25</inf> Co <inf>4</inf> Sb <inf>12</inf> (x = 0, 0.1, 0.2, 0.3) skutterudite thermoelectric materials with high figure of merit ZT = 1.36 Peer-reviewed

Elsheikh, M.H., Sabri, M.F.M., Said, S.M., Miyazaki, Y., Masjuki, H.H., Shnawah, D.A., Naito, S., Bashir, M.B.A.

Journal of Materials Science　52　(9)　5324-5332　2017

DOI： 10.1007/s10853-017-0772-8 　
Enhancement of Thermoelectric Behavior of La<inf>0.5</inf>Co<inf>4</inf>Sb<inf>12−x</inf>Te<inf>x</inf> Skutterudite Materials Peer-reviewed

Said, S.M., Bashir, M.B.A., Sabri, M.F.M., Miyazaki, Y., Shnawah, D.A.A., Hakeem, A.S., Shimada, M., Bakare, A.I., Ghazali, N.N.N., Elsheikh, M.H.

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science　48　(6)　3073-3081　2017

DOI： 10.1007/s11661-017-4058-1 　

ISSN： 1073-5623
Electronic transport properties in the undoped cuprate superconductor T'-La_1.8Eu_0.2CuO₄

Ohashi K., Kawamata T., Takamatsu T., Adachi T., Kato M., Naito S., Hayashi K., Miyazaki Y., Koike Y.

Meeting Abstracts of the Physical Society of Japan　71　1924-1924　2016
Publisher: The Physical Society of Japan
DOI： 10.11316/jpsgaiyo.71.2.0_1924 　
Structural and thermoelectric properties of TTF-I-0.71 organic compound Peer-reviewed

Hayashi, Kei, Kuba, Kento, Miyazaki, Yuzuru, IEEE

2016 Compound Semiconductor Week (Csw) Includes 28th International Conference on Indium Phosphide & Related Materials (Iprm) & 43rd International Symposium on Compound Semiconductors (Iscs)　2016
Microstructural modification of Co<inf>4</inf>Sb<inf>12</inf> skutterudite thermoelectric material through Al exceed doping Peer-reviewed

Elsheikh, M.H., Sabri, M.F.M., Said, S.M., Miyazaki, Y., Masjuki, H.H., Shnawah, D.A., Abdullah, N., Naito, S., Bashir, M.B.A.

Science of Advanced Materials　8　(11)　2016

DOI： 10.1166/sam.2016.2835 　
Higher manganese silicides Peer-reviewed

Miyazaki, Y.

Materials Aspect of Thermoelectricity　2016

DOI： 10.1201/9781315197029 　
Crystal Structure and Thermoelectric Properties of the Incommensurate Chimney–Ladder Compound VGe<inf>γ</inf> (γ ~1.82) Peer-reviewed

H. Hamada, Y. Kikuchi, K. Hayashi, Y. Miyazaki

Journal of Electronic Materials　45　(3)　1365-1368　2016

DOI： 10.1007/s11664-015-4036-6 　
Effect of Interstitial Mg in Mg<inf>2+x</inf>Si on Electrical Conductivity and Seebeck Coefficient Peer-reviewed

Kubouchi, M., Ogawa, Y., Hayashi, K., Takamatsu, T., Miyazaki, Y.

Journal of Electronic Materials　45　(3)　1589-1593　2016

DOI： 10.1007/s11664-015-4126-5 　
Thermoelectric Properties of Microstructurally Modified CoSb<inf>3</inf> Skutterudite by Hf-Addition Peer-reviewed

Elsheikh, M.H., Sabri, M.F.M., Said, S.M., Miyazaki, Y., Masjuki, H.H., Shnawah, D.A.A., Long, B.D., Naito, S., Bashir, M.B.A.

Journal of Electronic Materials　45　(6)　1-5　2016

DOI： 10.1007/s11664-016-4355-2 　
Structural Investigation and Indium Substitution in the Thermoelectric Mn<inf>2.7</inf>Cr<inf>0.3</inf>Si<inf>4</inf>Al<inf>2−x</inf>In<inf>x</inf> Series Peer-reviewed

Barbier, T., Combe, E., Funahashi, R., Takeuchi, T., Kubouchi, M., Miyazaki, Y., Guilmeau, E., Suzuki, R.O.

Journal of Electronic Materials　45　(3)　1992-1999　2016

DOI： 10.1007/s11664-016-4365-0 　
Electronic structure and thermoelectric properties of boron doped Mg<inf>2</inf>Si Peer-reviewed

Kubouchi, M., Hayashi, K., Miyazaki, Y.

Scripta Materialia　123　59-63　2016

DOI： 10.1016/j.scriptamat.2016.06.001 　
Effects of Nb substitution on thermoelectric properties of CrSi<inf>2</inf> Peer-reviewed

Nagai, H., Takamatsu, T., Iijima, Y., Hayashi, K., Miyazaki, Y.

Journal of Alloys and Compounds　687　37-41　2016

DOI： 10.1016/j.jallcom.2016.06.047 　
Thermoelectric and magnetic properties of Yb<inf>2</inf>MgSi<inf>2</inf>prepared by spark plasma sintering method Peer-reviewed

Kubouchi, M., Hayashi, K., Miyazaki, Y.

Applied Physics A: Materials Science and Processing　122　(8)　769　2016

DOI： 10.1007/s00339-016-0300-8 　
Effects of Ge substitution on thermoelectric properties of CrSi<inf>2</inf> Peer-reviewed

Nagai, H., Takamatsu, T., Iijima, Y., Hayashi, K., Miyazaki, Y.

Japanese Journal of Applied Physics　55　(11)　111801　2016

DOI： 10.7567/JJAP.55.111801 　
Crystal structure and thermoelectric properties of chimney-ladder higher manganese silicides Peer-reviewed

Miyazaki, Y.

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals　79　(11)　2015

DOI： 10.2320/jinstmet.JA201508 　
Ionic liquid entrapment by an electrospun polymer nanofiber matrix as a high conductivity polymer electrolyte Peer-reviewed

Datta, R.S., Said, S.M., Shahrir, S.R., Abdullah, N., Sabri, M.F.M., Balamurugan, S., Miyazaki, Y., Hayashi, K., Hashim, N.A., Habiba, U., Afifi, A.M.

RSC Advances　5　(60)　48217-48223　2015

DOI： 10.1039/c5ra03935e 　
Crystal structure and thermoelectric properties of the incommensurate chimney-ladder compound RhGe<inf>γ</inf> (γ ∼ 1.293) Peer-reviewed

Y. Miyazaki, T. Nakajo, Y. Kikuchi, K. Hayashi

Journal of Materials Research　30　(17)　2611-2617　2015

DOI： 10.1557/jmr.2015.137 　
Al insertion and additive effects on the thermoelectric properties of yttrium boride Peer-reviewed

Maruyama, S., Prytuliak, A., Miyazaki, Y., Hayashi, K., Kajitani, T., Mori, T.

Journal of Applied Physics　115　(12)　123702　2014

DOI： 10.1063/1.4869131 　
Theoretical and experimental investigation of the excellent p-n control in yttrium aluminoborides Peer-reviewed

Sahara, R., Mori, T., Maruyama, S., Miyazaki, Y., Hayashi, K., Kajitani, T.

Science and Technology of Advanced Materials　15　(3)　035012　2014

DOI： 10.1088/1468-6996/15/3/035012 　
Thermoelectric potential of polymer-scaffolded ionic liquid membranes Peer-reviewed

Datta, R.S., Said, S.M., Sahamir, S.R., Karim, M.R., Sabri, M.F.M., Nakajo, T., Kubouchi, M., Hayashi, K., Miyazaki, Y.

Journal of Electronic Materials　43　(6)　1585-1589　2014

DOI： 10.1007/s11664-013-2799-1 　
Fabrication of multilayer-type Mn-Si thermoelectric device Peer-reviewed

Kajitani, T., Ueno, T., Miyazaki, Y., Hayashi, K., Fujiwara, T., Ihara, R., Nakamura, T., Takakura, M.

Journal of Electronic Materials　43　(6)　1993-1999　2014

DOI： 10.1007/s11664-013-2933-0 　
Microstructure and thermoelectric properties of YxAlyB14 samples fabricated through the spark plasma sintering Peer-reviewed

Takao Mori, Tsuyoshi Kajitani, Kei Hayashi, Toshiyuki Nishimura, Satofumi Maruyama, Yuzuru Miyazaki

Materials for Renewable and Sustainable Energy　3　(3)　3:31　2014

DOI： 10.1007/S40243-014-0031-8 　
High temperature X-ray diffraction study on incommensurate composite crystal MnSi<inf>γ</inf> - (3+1)-dimensional superspace approach Peer-reviewed

Y. Kikuchi, T. Nakajo, K. Hayashi, Y. Miyazaki

Journal of Alloys and Compounds　616　263-267　2014

DOI： 10.1016/j.jallcom.2014.07.106 　
Quantitative analysis of interstitial Mg in Mg<inf>2</inf>Si studied by single crystal X-ray diffraction Peer-reviewed

Kubouchi, M., Hayashi, K., Miyazaki, Y.

Journal of Alloys and Compounds　617　389-392　2014

DOI： 10.1016/j.jallcom.2014.07.137 　
新規なホウ素系高温熱電変換材料の展望

森孝雄, David Berthebaud, Anastasiia Prytuliak, Ievgen Kuzmych-Ianchuk, Oksana Solohub, 西島一志, 道上勇一, 西村聡之, 丸山恵史, 宮崎譲, 林慶, 梶谷剛, 野村明子, 湯葢邦夫, 宍戸統悦, 岡田繁

第9回日本ホウ素・ホウ化物研究会　9　5-6　2013/12
Higher Manganese Silicide, MnSiγ

Yuzuru Miyazaki, Yuta Kikuchi

Springer Series in Materials Science　182　141-156　2013
Publisher: Springer Science and Business Media Deutschland GmbH
DOI： 10.1007/978-3-642-37537-8_7 　

ISSN： 2196-2812 0933-033X
特異な結晶構造を持つマンガンケイ化物系熱電材料の高性能化

宮﨑讓, 菊池祐太, 林慶

日本機械学会第5回マイクロ・ナノ工学シンポジウム講演論文集　2013
Thermoelectric ceramics for energy harvesting Peer-reviewed

Koumoto, K., Funahashi, R., Guilmeau, E., Miyazaki, Y., Weidenkaff, A., Wang, Y., Wan, C.

Journal of the American Ceramic Society　96　(1)　1-23　2013

DOI： 10.1111/jace.12076 　
Structural, magnetic, and ferroelectric properties of CuFe <inf>1-x</inf>Mn<inf>x</inf>O<inf>2</inf> Peer-reviewed

Hayashi, K., Fukatsu, R., Nozaki, T., Miyazaki, Y., Kajitani, T.

Physical Review B - Condensed Matter and Materials Physics　87　(6)　064418　2013

DOI： 10.1103/PhysRevB.87.064418 　

ISSN： 1098-0121
Crystal structure and thermoelectric properties of misfit-layered sulfides [Ln<inf>2</inf>S<inf>2</inf>]<inf>p</inf> NbS<inf>2</inf> (Ln = lanthanides) Peer-reviewed

Miyazaki, Y., Ogawa, H., Nakajo, T., Kikuchii, Y., Hayashi, K.

Journal of Electronic Materials　42　(7)　2013

DOI： 10.1007/s11664-012-2443-5 　

ISSN： 0361-5235
High-performance p-type magnesium silicon thermoelectrics Peer-reviewed

Kajitani, T., Kubouchi, M., Kikuchi, S., Hayashi, K., Ueno, T., Miyazaki, Y., Yubuta, K.

Journal of Electronic Materials　42　(7)　1855-1863　2013

DOI： 10.1007/s11664-012-2450-6 　
Anisotropic thermoelectric properties of MnS <inf>γ</inf> film prepared on R-sapphire Peer-reviewed

Takeda, K., Kikuchi, Y., Hayashi, K., Miyazaki, Y., Kajitani, T.

Applied Physics Express　5　(5)　055501　2012

DOI： 10.1143/APEX.5.055501 　
Cation distribution dependence on thermoelectric properties of doped spinel M <inf>0.6</inf>Fe <inf>2.4</inf>O <inf>4</inf> Peer-reviewed

Nozaki, T., Hayashi, K., Miyazaki, Y., Kajitani, T.

Materials Transactions　53　(6)　1164　2012

DOI： 10.2320/matertrans.M2012023 　
Enhanced thermoelectric performance of a chimney-ladder (Mn <inf>1-x</inf>Cr <inf>x</inf> )Si <inf>γ</inf> (γ∼ 1:7) solid solution Peer-reviewed

Kikuchi, Y., Miyazaki, Y., Saito, Y., Hayashi, K., Yubuta, K., Kajitani, T.

Japanese Journal of Applied Physics　51　(8 PART 1)　085801　2012

DOI： 10.1143/JJAP.51.085801 　
Excellent p-n control in a high temperature thermoelectric boride Peer-reviewed

Maruyama, S., Miyazaki, Y., Hayashi, K., Kajitani, T., Mori, T.

Applied Physics Letters　101　(15)　152101　2012

DOI： 10.1063/1.4758297 　
Thermoelectric energy conversion and ceramic thermoelectrics Peer-reviewed

Kajitani, T., Miyazaki, Y., Hayashi, K., Yubuta, K., Huang, X.Y., Koshibae, W.

Materials Science Forum　671　1-20　2011
Publisher: Materials Science Forum
DOI： 10.4028/www.scientific.net/MSF.671.1 　
Fabrication of iodine-doped pentacene thin films for organic thermoelectric devices Peer-reviewed

Hayashi, K., Shinano, T., Miyazaki, Y., Kajitani, T.

Journal of Applied Physics　109　(2)　023712-1-023712-4　2011

DOI： 10.1063/1.3537831 　

ISSN： 0021-8979
Thermoelectric properties of iodine doped pentacene thin films Peer-reviewed

Hayashi, K., Shinano, T., Miyazaki, Y., Kajitani, T.

Physica Status Solidi (C) Current Topics in Solid State Physics　8　(2)　2011

DOI： 10.1002/pssc.201000425 　
Preparation and thermoelectric properties of a chimney-ladder (Mn <inf>1-x</inf>Fex )Si<inf>y</inf> (y ̃ 1:7) solid solution Peer-reviewed

Miyazaki, Y., Saito, Y., Hayashi, K., Yubuta, K., Kajitani, T.

Japanese Journal of Applied Physics　50　(3)　035804　2011

DOI： 10.1143/JJAP.50.035804 　

ISSN： 0021-4922
The ability of RP-type cobaltites to accommodate carbonate groups: A new layered oxide Sr<inf>4</inf>Co<inf>2</inf>(CO<inf>3</inf>)O<inf>5.86</inf> Peer-reviewed

Demont, A., Pelloquin, D., Hébert, S., Bréard, Y., Höwing, J., Miyazaki, Y., Maignan, A.

Journal of Solid State Chemistry　184　(7)　1655-1660　2011

DOI： 10.1016/j.jssc.2011.04.004 　
Preparation of Higher Manganese Silicide (HMS) bulk and Fe-containing HMS bulk using a Na-Si Melt and their thermoelectrical properties Peer-reviewed

Yamada, T., Miyazaki, Y., Yamane, H.

Thin Solid Films　519　(24)　8524　2011

DOI： 10.1016/j.tsf.2011.05.032 　
Effect of Cobalt-Substitution on the Structure and Thermoelectric Properties of Chimney-Ladder Solid Solution (Mn_1-xCo_x)Si_gamma (gamma~ 1.7) Peer-reviewed

Yuzuru Miyazaki, Yoshitsugu Saito, Kei Hayashi, Kunio Yubuta, Tsuyoshi Kajitani

Advances in Science and Technology　74　22-25　2010/09

DOI： 10.4028/www.scientific.net/AST.74.22 　
Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films Peer-reviewed

Tamayo, E., Hayashi, K., Shinano, T., Miyazaki, Y., Kajitani, T.

Applied Surface Science　256　(14)　4554　2010

DOI： 10.1016/j.apsusc.2010.02.046 　

ISSN： 0169-4332
Precise control of Na content in the layered cobaltate γ-Na <inf>x</inf>CoO <inf>2</inf> Peer-reviewed

Igarashi, D., Miyazaki, Y., Yubuta, K., Kajitani, T.

Journal of Electronic Materials　39　(9)　1669　2010

DOI： 10.1007/s11664-010-1238-9 　

ISSN： 0361-5235
Spin dynamics of triangular lattice antiferromagnet CuFeO2: Crossover from spin-liquid to paramagnetic phase Peer-reviewed

K. Hayashi, T. Nozaki, R. Fukatsu, Y. Miyazaki, T. Kajitani

PHYSICAL REVIEW B　80　(14)　2009/10

DOI： 10.1103/PhysRevB.80.144413 　

ISSN： 1098-0121
Synthesis, crystal structure and physical properties of layered cobalt oxide Ca<inf>x</inf>CoO<inf>2</inf> (x∼ 0.47) Peer-reviewed

Miyazaki, Y., Huang, X., Kajiwara, T., Yamane, H., Kajitani, T.

Journal of the Ceramic Society of Japan　117　(1361)　42-46　2009

DOI： 10.2109/jcersj2.117.42 　
Structure and high-temperature thermoelectric properties of the n-type layered oxide Ca <inf>2-x</inf> Bi <inf>x-δ</inf> MnO <inf>4-γ</inf> Peer-reviewed

Kawashima, F., Huang, X.Y., Hayashi, K., Miyazaki, Y., Kajitani, T.

Journal of Electronic Materials　38　(7)　1159-1162　2009

DOI： 10.1007/s11664-009-0700-z 　

ISSN： 0361-5235
On the excess oxygen in four-layered rock-salt-type units of modulated thermoelectric Bi-Sr-(Co,Rh)-O compounds Peer-reviewed

Yubuta, K., Miyazaki, Y., Terasaki, I., Kajitani, T.

Journal of Electronic Materials　38　(7)　1116-1120　2009

DOI： 10.1007/s11664-009-0705-7 　

ISSN： 0361-5235
Discommensuration of doped [Ca <inf>2</inf>CoO <inf>3</inf>] <inf>p</inf> CoO <inf>2</inf> Peer-reviewed

Kajitani, T., Yubuta, K., Huang, X., Miyazaki, Y.

Journal of Electronic Materials　38　(7)　1462-1467　2009

DOI： 10.1007/s11664-009-0784-5 　

ISSN： 0361-5235
Spin dynamics of triangular lattice antiferromagnet CuFeO<inf>2</inf>: Crossover from spin-liquid to paramagnetic phase Peer-reviewed

Hayashi, K., Nozaki, T., Fukatsu, R., Miyazaki, Y., Kajitani, T.

Physical Review B - Condensed Matter and Materials Physics　80　(14)　144413-1-144413-5　2009

DOI： 10.1103/PhysRevB.80.144413 　

ISSN： 0163-1829
Domain Structure of Misfit-layered Compounds in Bi-Ca-Co-O Peer-reviewed

Kunio Yubuta, Shahnaz Begum, Yasuhiro Ono, Yuzuru Miyazaki, Tsuyoshi Kajitani

Journal of Flux Growth　3　(1)　18-23　2008
High temperature thermoelectric properties of Ca<inf>1-x</inf>Bi<inf>x</inf>Mn<inf>1-y</inf>V <inf>y</inf>O<inf>3-δ</inf> (0≤x=y≤0.08) Peer-reviewed

Huang, X.Y., Miyazaki, Y., Kajitani, T.

Solid State Communications　145　(3)　132-136　2008

DOI： 10.1016/j.ssc.2007.10.012 　
Triclinic crystal structure of [(Bi1-xCox)(2)(Sr1-yBiy)(2)O4+delta](p)[CoO2](2) with p similar to 1.05 and delta similar to 0.7 Peer-reviewed

Kajitani, T., Begum, S., Yubuta, K., Miyazaki, Y., Igawa, N.

PROCEEDINGS ICT 07: TWENTY-SIXTH INTERNATIONAL CONFERENCE ON THERMOELECTRICS　Oxide03　2008
Preparation, crystal structure and thermoelectric properties of La2-2xCa1+2xMn2O7 Peer-reviewed

Miyazaki, Yuzuru, Abe, Daisuke, Kajitani, Tsuyoshi

PROCEEDINGS ICT 07: TWENTY-SIXTH INTERNATIONAL CONFERENCE ON THERMOELECTRICS　Oxide08　2008
Discommensurate structure in [(Ca<inf>0.90</inf>Sr<inf>0.10</inf>) <inf>2</inf>CoO<inf>3</inf>]<inf>0.61</inf>CoO<inf>2</inf> Peer-reviewed

Yubuta, K., Huang, X., Miyazaki, Y., Kajitani, T.

Journal of the Physical Society of Japan　77　(6)　064604　2008

DOI： 10.1143/JPSJ.77.064604 　
High-resolution electron microscopy study of [(Ca,Bi)<inf>2</inf>CoO <inf>3</inf>]<inf>0.62</inf>CoO<inf>2</inf> Peer-reviewed

Yubuta, K., Huang, X., Miyazaki, Y., Kajitani, T.

Journal of the Physical Society of Japan　77　(9)　094603　2008

DOI： 10.1143/JPSJ.77.094603 　
Disorder-order transitions in Na<inf>x</inf>CoO<inf>2</inf> (x∼0.58) Peer-reviewed

Igarashi, D., Miyazaki, Y., Kajitani, T., Yubuta, K.

Physical Review B - Condensed Matter and Materials Physics　78　(18)　184112-1-184112-6　2008

DOI： 10.1103/PhysRevB.78.184112 　
Electronic structure of Ca3 Co4 O9 studied by photoemission spectroscopy: Phase separation and charge localization Peer-reviewed

Wakisaka, Y., Hirata, S., Mizokawa, T., Suzuki, Y., Miyazaki, Y., Kajitani, T.

Physical Review B - Condensed Matter and Materials Physics　78　(23)　235107-1-235107-6　2008

DOI： 10.1103/PhysRevB.78.235107 　
Modulated crystal structure of chimney-ladder higher manganese silicides MnSiγ (γ∼1.74) Peer-reviewed

Miyazaki, Y., Igarashi, D., Hayashi, K., Kajitani, T., Yubuta, K.

Physical Review B - Condensed Matter and Materials Physics　78　(21)　214104-1-214104-8　2008

DOI： 10.1103/PhysRevB.78.214104 　
Crystal structure and electrical transport properties of Bi and V substituted CaMnO₃ Peer-reviewed

Xiangyang HUANG, Yuzuru MIYAZAKI, Tsuyoshi KAJITANI

IMPRES Proceedings 2007　A014-1-A014-4　2007/10
Static and Dynamic Characteristics of Thermoelectric Ceramics Peer-reviewed

Shahnaz Begum, Kunio Yubuta, Yasuhuri Ono, Yuzuru Miyazaki, Tsuyoshi Kajitani

Key Engineering Materials　336-338 I　826-830　2007

DOI： 10.4028/WWW.SCIENTIFIC.NET/KEM.336-338.826 　
Modulated Structure of Bi_1.8Sr_2.0Rh_1.6O_x Peer-reviewed

Tsuyoshi Kajitani, Ichiro Terasaki, Yuzuru Miyazaki, Satoshi Okada, Kunio Yubuta

Key Engineering Materials　336-338 I　818-821　2007

DOI： 10.4028/WWW.SCIENTIFIC.NET/KEM.336-338.818 　
Superspace group approach to the crystal structure of Na <inf>0.5</inf>CoO<inf>2</inf> Peer-reviewed

Igarashi, D., Miyazaki, Y., Yubuta, K., Kajitani, T.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　46　(1)　304-310　2007

DOI： 10.1143/JJAP.46.304 　
Crystal structure of Sr<inf>0.35</inf>CoO<inf>2</inf> compound studied by high-resolution electron microscopy Peer-reviewed

Yubuta, K., Hasegawa, Y.-K., Miyazaki, Y., Kajitani, T.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　46　(2)　712-715　2007

DOI： 10.1143/JJAP.46.712 　
High-resolution electron microscopy study of misfit-layered Bi-based cobaltites Peer-reviewed

Y. Miyazaki, S. Begum, K. Yubuta, T. Kajitani, Y. Ono

Philosophical Magazine　87　(18-21)　2663-2669　2007

DOI： 10.1080/14786430701264145 　
Modulated structure of the misfit-layered compound Bi<inf>2.12</inf>Ba <inf>2.00</inf>Rh<inf>1.95</inf>O<inf>x</inf> Peer-reviewed

Yubuta, K., Okada, S., Miyazaki, Y., Terasaki, I., Kajitani, T.

Philosophical Magazine　87　(18-21)　2641-2646　2007

DOI： 10.1080/14786430701364945 　
Structure analyses of composite crystal oxides by means of powder neutron diffraction Invited

宮崎譲

KEK Proceedings 2005-19, Symposium on Powder Diffraction III　49-54　2006/02
Crystal structure of misfit-layered compound [Bi<inf>1.94</inf>Ba <inf>1.83</inf>O<inf>y</inf>]<inf>0.56</inf>[RhO<inf>2</inf>] Peer-reviewed

Yubuta, K., Okada, S., Miyazaki, Y., Terasaki, I., Kajitani, T.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　45　(1 A)　179-185　2006

DOI： 10.1143/JJAP.45.179 　
Bi-substitution effects on crystal structure and thermoelectric properties of Ca<inf>3</inf>Co<inf>4</inf>O<inf>9</inf> single crystals Peer-reviewed

Mikam, M., Chong, K., Miyazaki, Y., Kajitani, T., Inoue, T., Sodeoka, S., Funahashi, R.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　45　(5 A)　4131-4136　2006

DOI： 10.1143/JJAP.45.4131 　
Modulated structure of misfit-layered compound [Bi<inf>2.08</inf>Sr <inf>1.67</inf>O<inf>y</inf>]<inf>0.54</inf>[CoO<inf>2</inf>] Peer-reviewed

Yubuta, K., Begum, S., Ono, Y., Miyazaki, Y., Kajitani, T.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　45　(5 A)　4159-4164　2006

DOI： 10.1143/JJAP.45.4159 　
Static and dynamic corrugation of thermoelectric cobaltites Peer-reviewed

Tsuyoshi Kajitani, Yuzuru Miyazaki, Yasuhiro Ono, Shahnaz Begum, Kunio Yubuta

TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, VOL 31, NO 2　31　(2)　363-366　2006
Shear-type modulated structure of Bi2.49Sr2.00Co2.22Ox Peer-reviewed

K. Yubuta, S. Begum, Y. Ono, Y. Miyazaki, T. Kajitani

Transactions of the Materials Research Society of Japan, Vol 31, No 2　31　(2)　391-394　2006
High-resolution electron microscopy of thermoelectric compounds Bi-(Sr,Ba)-Rh-O Peer-reviewed

K. Yubuta, S. Okada, Y. Miyazaki, I. Terasaki, T. Kajitani

ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS　25　85-+　2006

DOI： 10.1109/ICT.2006.331286 　
The thermoelectric properties of [Ca2CoO3](0.62)[CoO2] textured ceramics Peer-reviewed

X. Y. Huang, Y. Miyazaki, K. Yubuta, Y. Oide, T. Kajitani

ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS　25　89-+　2006
Thermogravimetric study and high-temperature thermoelectric properties of [Ca-2(Co(1-x)A(x))O-3](0.62)CoO2 Peer-reviewed

Y. Oide, Y. Miyazaki, Y. Ono, X. Y. Huang, T. Kajitani

ICT'06: XXV INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS　25　402-+　2006
Preparation and thermoelectric properties of oxygen-deficient misfit layered cobaltite [Ca₂CoO_3-d]_pCoO₂ Peer-reviewed

Y. Miyazaki, Y. Suzuki, T. Kajitani

Proceedings of the 23rd International Conference on Thermoelectrics, ICT2004　129　2005/12
Preparation and thermoelectric properties of misfit layered sulfides [Ln₂S₂]_pNbS₂ Peer-reviewed

Y. Miyazaki, H. Ogawa, T. Kajitani

Proceedings of the 23rd International Conference on Thermoelectrics, ICT2004　081　2005/12
Superconductivity and physical properties of Ba24Si100 determined from electric transport, specific-heat capacity, and magnetic susceptibility measurements Peer-reviewed

T Rachi, H Yoshino, R Kumashiro, M Kitajima, K Kobayashi, K Yokogawa, K Murata, N Kimura, H Aoki, H Fukuoka, S Yamanaka, H Shimotani, T Takenobu, Y Iwasa, T Sasaki, N Kobayashi, Y Miyazaki, K Saito, FZ Guo, K Kobayashi, K Osaka, K Kato, M Takata, K Tanigaki

PHYSICAL REVIEW B　72　(14)　2005/10

DOI： 10.1103/PhysRevB.72.144504 　

ISSN： 1098-0121

eISSN： 1550-235X
Bismuth Substitution Effect on the Structure and Thermoelectric Properties of [Ca₂CoO₃]_pCoO₂ Peer-reviewed

Yuzuru Miyazaki, Yousuke Suzuki, Mitsuko Onoda, Yoshinobu Ishii, Yukio Morii, Tsuyoshi Kajitani

Transactions of the Materials Research Society of Japan　30　(2)　499-502　2005/06
Single Crystal Growth of beta-Ca_xCoO₂ (x~0.5) by Flux Growth Technique Peer-reviewed

X. Y. Huang, Y. Miyazaki, T. Kajitani

Transactions of the Materials Research Society of Japan　30　(2)　511-513　2005/06
Synthesis and Thermoelectric Properties of Misfit Cobaltites, [Bi_2-dSr_2-xCo_xO₄]_RS[CoO₂]_p Peer-reviewed

Shahnaz Begum, Y. Ono, Y. Miyazaki, T. Kajitani

Transactions of the Materials Research Society of Japan　30　(2)　495-497　2005/06
Cold neutron inelastic scattering study for Co-121 and related cobaltites Peer-reviewed

Tsuyoshi Kajitani, Yuzuru Miyazaki, Yasuhiro Ono, Ken-ichi Hamano, Shingo Inayama, Yuh-ki Hasegawa

Transactions of the Materials Research Society of Japan　30　(2)　507-510　2005/06
Compounds and subsolidus phase relations in the CaO - Co<inf>3</inf>O <inf>4</inf>-CuO system Peer-reviewed

Miyazaki, Y., Huang, X., Kajitani, T.

Journal of Solid State Chemistry　178　(10)　2973-2979　2005

DOI： 10.1016/j.jssc.2005.06.042 　
Crystal structure of thermoelectric compound [Bi1.79Sr1.98Oy](0.63)[RhO2] Peer-reviewed

Kunio Yubuta, Tsuyoshi Kajitani, Ichiro Terasaki, Yuzuru Miyazaki, Satoshi Okada

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS　44　(12)　8557-8561　2005

DOI： 10.1143/JJAP.44.8557 　
Thermoelectric properties of Ca-doped γ-Na_xCoO₂ Peer-reviewed

Yasuhiro Ono, Nobuhiko Kato, Yuzuru Miyazaki, Tsuyoshi Kajitani

Transactions of the Materials Research Society of Japan　29　(6)　2821-2824　2004/06
Transport properties of undoped and Sb-doped half-Heusler compounds NbCoSn Peer-reviewed

Yasuhiro Ono, Shingo Inayama, Satoshi Yotsuhashi, Hideaki Adachi, Yuzuru Miyazaki, Tsuyoshi Kajitani

Transactions of the Materials Research Society of Japan　29　(6)　2785-2788　2004/06
Thermoelectric Properties of ladder-type oxide [(Sr_1-xCa_x)₂Cu₂O₃]_g[Cu_1-yCo_yO₂] Peer-reviewed

Shunsuke Tayama, Yuzuru Miyazaki, Tsuyoshi Kajitani

Transactions of the Materials Research Society of Japan　29　(6)　2767-2772　2004/06
Effects of Sb-doping on electrical transport properties of Co-based half-Heusler compound Peer-reviewed

Y Ono, S Inayama, H Adachi, S Yotsuhashi, Y Miyazaki, T Kajitani

THERMOELECTRIC MATERIALS 2003-RESEARCH AND APPLICATIONS　793　195-200　2004

ISSN： 0272-9172
Synthesis and magnetic properties of the quasi-one-dimensional compound Ca0.83(Cu1−xCox)O2 Peer-reviewed

Miyazaki, Y.

Journal of Solid State Chemistry　177　(1)　73-79　2004

DOI： 10.1016/S0022-4596(03)00312-8 　
Transport Properties of Ca-doped γ-Na_xCoO₂ Peer-reviewed

Yasuhiro ONO, Nobuhiko KATO, Yuzuru MIYAZAKI, Tsuyoshi Kajitani

Journal of the Ceramic Society of Japan　112　(Supplement)　S626-S628　2004

DOI： 10.14852/jcersjsuppl.112.0.S626.0 　
Preparation and thermoelectric properties of misfit-layered sulfide [Yb<inf>1.90</inf>S<inf>2</inf>]<inf>0.62</inf>NbS<inf>2</inf> Peer-reviewed

Miyazaki, Y., Ogawa, H., Kajitani, T.

Japanese Journal of Applied Physics, Part 2: Letters　43　(9 AB)　L1202-L1204　2004

DOI： 10.1143/JJAP.43.L1202 　
Modulated structure of misfit layered cobalt oxide [(Ca <inf>0.90</inf>Bi<inf>0.10</inf>)<inf>2</inf>(Co<inf>0.95</inf>Bi <inf>0.05</inf>)O<inf>3</inf>]<inf>p</inf>CoO<inf>2</inf> Peer-reviewed

Miyazaki, Y., Suzuki, Y., Onoda, M., Ishii, Y., Morii, Y., Kajitani, T.

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers　43　(9 A)　6252-6258　2004

DOI： 10.1143/JJAP.43.6252 　
Crystal structure and thermoelectric properties of the misfit-layered cobalt oxides Peer-reviewed

Miyazaki, Y.

Solid State Ionics　172　(1-4 SPEC. ISS.)　463-467　2004

DOI： 10.1016/j.ssi.2004.01.046 　
Modulated Structure of Misfit-Layered Cobalt Oxide [Ca ₂ (Co _0.65 Cu _0.35 ) ₂ O ₄ ] _0.63 CoO ₂ Peer-reviewed

Yoshinobu Ishii, Tsuyoshi Kajitani, Yukio Morii, Yasuhiro Ono, Masaya Uchida, Mitsuko Onoda, Tatsuro Miura, Yuzuru Miyazaki

Japanese Journal of Applied Physics - Special Issues　42　(12)　7467-7473　2003

DOI： 10.1143/JJAP.42.7467 　
Crystal structure and thermoelectric properties of the composite crystal [(Ca<inf>1-x</inf>Sr<inf>x</inf>)<inf>2</inf>CoO<inf>3</inf>]<inf>ρ</inf>CoO <inf>2</inf> Peer-reviewed

Miyazaki, Y., Miura, T., Ono, Y., Kajitani, T.

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy　50　(6)　475-479　2003

DOI： 10.2497/jjspm.50.475 　
Crystal structure and transport properties of γ-Na<inf>x</inf>CoO<inf>2</inf> (x=0.67 - 0.75) Peer-reviewed

Ono, Y., Kato, N., Ishii, Y., Miyazaki, Y., Kajitani, T.

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy　50　(6)　469-474　2003

DOI： 10.2497/jjspm.50.469 　
Phonon DOS of filled skutterudite, Ba0.1CoSb3 Peer-reviewed

T Kajitani, Y Ono, Y Miyazaki, M Sluiter, L Chen, L Goto, Y Kawazoe

TWENTY-SECOND INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '03　81-84　2003

DOI： 10.1109/ICT.2003.1287454 　
Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca2CoO3]pCoO(2) Peer-reviewed

Y Miyazaki, Y Suzuki, T Miura, Y Ono, T Kajitani

TWENTY-SECOND INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '03　203-206　2003

DOI： 10.1109/ICT.2003.1287484 　
Crystal structure, electric and magnetic properties of layered cobaltite β-Na<inf>x</inf>CoO<inf>2</inf> Peer-reviewed

Ono, Y., Ishikawa, R., Miyazaki, Y., Ishii, Y., Morii, Y., Kajitani, T.

Journal of Solid State Chemistry　166　(1)　177-181　2002

DOI： 10.1006/jssc.2002.9578 　
Low-Temperature Synthesis and Electric Properties of New Layered Cobaltite, SrxCoO2 Peer-reviewed

Yasuhiro Ono, Tsuyoshi Kajitani, Yuzuru Miyazaki, Ryuji Ishikawa

Japanese Journal of Applied Physics - Special Issues　41　(3 B)　L337-L339　2002

DOI： 10.1143/JJAP.41.L337 　
Structure-compressibility relationships in layered cuprate materials Peer-reviewed

Hyatt, N.C., Hriljac, J.A., Miyazaki, Y., Gameson, I., Edwards, P.P., Jephcoat, A.P.

Physical Review B - Condensed Matter and Materials Physics　65　(1)　014507　2002

DOI： 10.1103/PhysRevB.65.014507 　
Preparation and Low-Temperature Thermoelectric Properties of the Composite Crystal [Ca2(Co0.65Cu0.35)2O4]0.624CoO2 Peer-reviewed

Tsuyoshi Kajitani, Yasuhiro Ono, Tatsuro Miura, Yuzuru Miyazaki

Japanese Journal of Applied Physics - Special Issues　41　(7 B)　L849-L851　2002

DOI： 10.1143/JJAP.41.L849 　
Synthesis and characterization of Ag5−xPb2O6−δ Peer-reviewed

Masahiko Shimada, Junichi Takahashi, Kouta Iwasaki, Tsutomu Yamashita, Kensuke Nakajima, Tsuyoshi Kajitani, Yuzuru Miyazaki, Shunichi Kubota, Hisanori Yamane

Physica C: Superconductivity and its Applications　382　(2-3)　263-268　2002

DOI： 10.1016/S0921-4534(02)01223-6 　
Crystal structure and thermoelectric properties of the composite crystal [(Ca1-xSrx)2CoO3]pCoO2 Peer-reviewed

Y. Miyazaki, T. Miura, Y. Ono, T. Akashi, T. Goto, T. Kajitani

International Conference on Thermoelectrics, ICT, Proceedings　2002-　226-229　2002
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/ICT.2002.1190306 　
Development of new-type cobalt oxide thermoelectric materials Peer-reviewed

T Kajitani, Y Ono, Y Miyazaki, Y Morii

XXI INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '02　195-198　2002

DOI： 10.1109/ICT.2002.1190298 　
Modulated Structure of the Thermoelectric Compound [Ca<inf>2</inf>CoO <inf>3</inf>]<inf>0.62</inf>CoO<inf>2</inf> Peer-reviewed

Miyazaki, Y., Onoda, M., Oku, T., Kikuchi, M., Ishii, Y., Ono, Y., Morii, Y., Kajitani, T.

Journal of the Physical Society of Japan　71　(2)　491-497　2002

DOI： 10.1143/JPSJ.71.491 　
Modulated structure of the composite crystal Ca<inf>0.83</inf>CuO<inf>2</inf> Peer-reviewed

Miyazaki, Y., Onoda, M., Edwards, P.P., Shamoto, S., Kajitani, T.

Journal of Solid State Chemistry　163　(2)　540-545　2002

DOI： 10.1006/jssc.2001.9366 　
Structure Refinement of the Composite Crystal (Ca_0.565Y_0.435)_0.82CuO₂ Peer-reviewed

Y. Miyazaki, M. Onoda, A. Yamamoto, P. P. Edwards, T. Kajitani

Journal of Physical Society Japan　70　(Suppl. A)　238-240　2001
Neutron Scattering Study of La_1-xCa_xMnO₃ with x=0.15 Peer-reviewed

S. Begum, Y. Ono, Y. Miyazaki, Y. Tomioka, Y. Tokura, T. Kajitani

Journal of Physical Society Japan　70　(Suppl. A)　241-243　2001
Preparation of Bi2Te3 films by electrodeposition Peer-reviewed

Tsuyoshi Kajitani, Yuzuru Miyazaki

Journal of Crystal Growth　229　(1)　542-546　2001

DOI： 10.1016/S0022-0248(01)01225-8 　
Electron spin resonance studies of the hole-doped quasi one-dimensional cuprate (Ca0.80Y0.20)0.82CuO2 Peer-reviewed

Miyazaki, Y., Anderson, P.A., Edwards, P.P.

Journal of Magnetism and Magnetic Materials　234　(2)　241-246　2001

DOI： 10.1016/S0304-8853(01)00367-5 　
Neutron Diffraction Study of Layered Oxides Na_x(Co_1-yMn_y)O_2-d Peer-reviewed

Y. Ono, R. Ishikawa, Y. Miyazaki, T. Kajitani

Journal of Physical Society of Japan　70　(Suppl. A)　235-237　2001
Rapid synthesis of colossal magnetoresistance manganites by microwave dielectric heating Peer-reviewed

Neil C. Hyatt, Martin O. Jones, Adrian Porch, Amalia I. Mihut, Stephen J. Blundell, Yuzuru Miyazaki, Peter P. Edwards, Ian Gameson, Kay E. Gibbons

Chemical Communications　(2)　159-160　2000

DOI： 10.1039/A907677H 　
Pressure effect and neutron scattering study on Ax HfNCl (A; alkali metals and organic molecules) Peer-reviewed

Y. Miyazaki, T. Kajitani, Y. Ono, Y. Yamaguchi, K. Ohoyama, H. Yoshida, S.M. Bennington, O. Petrenko, S. Yamanaka, M. Yasukawa, T. Koiwasaki, K. Iizawa, S. Shamato

Physica C: Superconductivity and its Applications　341-348　(PART 3)　747-748　2000

DOI： 10.1016/S0921-4534(00)00673-0 　
ESR study of the quasi one-dimensional cuprate (Ca1-xYx)(0.82)CuO2 Peer-reviewed

Miyazaki, Y, Hyatt, NC, Anderson, PA, Edwards, PP

Advances in Superconductivity Xii　149-151　2000
Low-Temperature Thermoelectric Properties of the Composite Crystal [Ca 2CoO 3.34] 0.614[CoO 2] Peer-reviewed

Megumi Akoshima, Yuzuru Miyazaki, Tsuyoshi Kajitani, Yoji Koike, Yasuhiro Ono, Kazutaka Kudo

Japanese Journal of Applied Physics - Special Issues　39　(6 A)　L531-L533　2000

DOI： 10.1143/JJAP.39.L531 　
Synthesis and Crystal Structure of Nd _1.57 Ce _2.56 Sr _3.87 CuO _12.08 Peer-reviewed

P. P. Edwards, Y. Amamoto, Y. Miyazaki

Chemistry of Materials　11　(3)　564-568　1999

DOI： 10.1021/CM9803657 　
A structural study of the quasi one-dimensional compound (Ca<inf>1-x</inf>Y<inf>x</inf>)0.82CuO<inf>2</inf> prepared at room pressure Peer-reviewed

Miyazaki, Y., Gameson, I., Edwards, P.P.

Journal of Solid State Chemistry　145　(2)　511-516　1999

DOI： 10.1006/jssc.1999.8196 　
Crystal structure and magnetic properties of the quasi-one-dimensional compound (Ca1-xYx)(0.82)CuO2 prepared at room pressure Peer-reviewed

Miyazaki, Y., Hyatt, N.C., Slaski, M., Gameson, I., Edwards, P.P.

Chemistry - A European Journal　5　(8)　2265-2269　1999

DOI： 10.1002/(SICI)1521-3765(19990802)5:8<2265::AID-CHEM2265>3.0.CO;2-U 　
Structures of β-ZrNCl and superconducting Li0.16ZrNCl: double honeycomb lattice superconductor Peer-reviewed

T. Kajitani, K. Ohoyama, S. Shamoto, Y. Yamaguchi, M. Ohashi, Y. Miyazaki, Y. Ono, T. Kato

Physica C: Superconductivity and its Applications　306　(1-2)　7-14　1998

DOI： 10.1016/S0921-4534(98)00357-8 　
Preparation of Superconducting Sr$_{\bf{2 } }$CuO$_{\bf{2 } }$(CO$_{\bf{3 } }$)$_{ { \bf{1-}\ninmbi{x } } }$(BO$_{\bf{3 } }$)x Films by Metalorganic Chemical Vapor Deposition Peer-reviewed

Hisanori Yamane, Toshio Hirai, Yuzuru Miyazaki

Japanese Journal of Applied Physics - Special Issues　35　(8B)　L1053-L1054　1996

DOI： 10.1143/JJAP.35.L1053 　
Analysis of oxyanion (BO 3 3? , CO 3 2? , SO 4 2? , PO 4 3? , SeO 4 4- ) substitution in Y123 compounds studied by X-ray photoelectron spectroscopy Peer-reviewed

C. Greaves, M. Neumann, E. Z. Kurmaev, Y. Miyazaki, P. R. Slater, S. Uhlenbrock, S. Bartkowski, V. R. Galakhov, V. V. Fedorenko

Journal of Superconductivity　9　(1)　97-100　1996

DOI： 10.1007/BF00728433 　
Neutron diffraction study of a (C,Cu)(Sr,Ca)<inf>2</inf>(Y,Ca,Sr) Cu<inf>2</inf>O<inf>7</inf> superconductor Peer-reviewed

Miyazaki, Y., Yamane, H., Kajitani, T., Morii, Y., Funahashi, S., Hirai, T.

Physica B: Physics of Condensed Matter　213-214　(C)　94-96　1995

DOI： 10.1016/0921-4526(95)00072-H 　
Preparation and crystal structure of Nd<inf>2</inf>Sr<inf>3</inf>Cu<inf>3</inf>O<inf>6</inf>(BO<inf>3</inf>)<inf>2</inf> Peer-reviewed

Amamoto, Y., Yamane, H., Oku, T., Miyazaki, Y., Hirai, T.

Physica C: Superconductivity and its applications　227　(3-4)　245-253　1994

DOI： 10.1016/0921-4534(94)90078-7 　
Preparation, crystal structure and superconductivity of (C, Cu)(Sr, Ca)<inf>2</inf>(Y, Ca, Sr)Cu<inf>2</inf>O<inf>7</inf> Peer-reviewed

Miyazaki, Y., Yamane, H., Kajitani, T., Kobayashi, N., Hiraga, K., Morii, Y., Funahashi, S., Hirai, T.

Physica C: Superconductivity and its applications　230　(1-2)　89-96　1994

DOI： 10.1016/0921-4534(94)90449-9 　
Ordered arrangement of carbon and copper atoms in (C<inf>0.4</inf>Cu<inf>0.6</inf>)Sr<inf>2</inf>(Y<inf>0.86</inf>Sr<inf>0.14</inf>)Cu<inf>2</inf>O<inf>7</inf> Peer-reviewed

Ohnishi, N., Miyazaki, Y., Yamane, H., Kajitani, T., Hirai, T., Hiraga, K.

Physica C: Superconductivity and its applications　207　(1-2)　175-184　1993

DOI： 10.1016/0921-4534(93)90437-U 　
Preparation, electric conductivity and crystal structure of (Sr<inf>2-x</inf>Ba<inf>x</inf>)CuO<inf>2+y</inf>(CO<inf>3</inf>)<inf>z</inf> Peer-reviewed

Miyazaki, Y., Yamane, H., Kajitani, T., Morii, Y., Funahashi, S., Hiraga, K., Hirai, T.

Physica C: Superconductivity and its applications　215　(1-2)　159-166　1993

DOI： 10.1016/0921-4534(93)90376-2 　
Crystal Structures of New Cuprates Containing CO₃ Analyzed by the Rietveld Method of Neutron Powder Diffraction Peer-reviewed

Y.Miyazaki, H.Yamane, T.Kajitani, K.Hiraga, Y.Morii, S.Funahashi, T.Hirai

JAERI-M 93-228 vol.2 JAERI 1993,　248-253　1993
Preparation of a new compound, Y<inf>2.0</inf>Sr<inf>5.0</inf>Cu<inf>6.0</inf>C<inf>0.9</inf>O<inf>16.2</inf> Peer-reviewed

Miyazaki, Y., Yamane, H., Hirai, T.

Physica C: Superconductivity and its applications　198　(1-2)　53-56　1992

DOI： 10.1016/0921-4534(92)90265-E 　
Superconductivity in the new compound (Y<inf>1-x</inf>Ca<inf>x</inf>)<inf>0.95</inf>Sr<inf>2.05</inf>Cu<inf>2.4</inf>(CO<inf>3</inf>)<inf>0.6</inf>O<inf>y</inf> Peer-reviewed

Akimitsu, J., Uehara, M., Ogawa, M., Nakata, H., Tomimoto, K., Miyazaki, Y., Yamane, H., Hirai, T., Kinoshita, K., Matsui, Y.

Physica C: Superconductivity and its applications　201　(3-4)　320-324　1992

DOI： 10.1016/0921-4534(92)90479-V 　
(C<inf>0.35</inf>Cu<inf>0.65</inf>)Sr<inf>2</inf>(Y<inf>0.73</inf>Ce<inf>0.27</inf>)<inf>2</inf>Cu<inf>2</inf>O<inf>x</inf>. A new superconductor containing CO<inf>3</inf> Peer-reviewed

Miyazaki, Y., Yamane, H., Kobayashi, N., Hirai, T., Nakata, H., Tomimoto, K., Akimitsu, J.

Physica C: Superconductivity and its applications　202　(1-2)　162-166　1992

DOI： 10.1016/0921-4534(92)90308-Y 　
The crystal structure of (C<inf>0.4</inf>Cu<inf>0.6</inf>)Sr<inf>2</inf>(Y<inf>0.86</inf>Sr<inf>0.14</inf>)Cu<inf>2</inf>O<inf>7</inf> Peer-reviewed

Miyazaki, Y., Yamane, H., Ohnishi, N., Kajitani, T., Hiraga, K., Morii, Y., Funahashi, S., Hirai, T.

Physica C: Superconductivity and its applications　198　(1-2)　7-13　1992

DOI： 10.1016/0921-4534(92)90258-E 　
Preparation and crystal structure of Sr<inf>2</inf>CuO<inf>2</inf>(CO<inf>3</inf>) Peer-reviewed

Miyazaki, Y., Yamane, H., Kajitani, T., Oku, T., Hiraga, K., Morii, Y., Fuchizaki, K., Funahashi, S., Hirai, T.

Physica C: Superconductivity and its applications　191　(3-4)　434-440　1992

DOI： 10.1016/0921-4534(92)90941-5 　
SRO-CAO-CUO SOLID-SOLUTION PHASES PREPARED AT 1273-K UNDER 0.1 MPA OF OXYGEN AND THEIR ELECTRIC-CONDUCTIVITY Peer-reviewed

Yamane, Hisanori, Miyazaki, Yuzuru, Hirai, Toshio

Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi-journal of the Ceramic Society of Japan　98　(9)　1990

ISSN： 0914-5400
SRO-CAO-CUO SOLID-SOLUTION PHASES PREPARED AT 1273-K UNDER 0.1 MPA OF OXYGEN AND THEIR ELECTRIC-CONDUCTIVITY Peer-reviewed

H YAMANE, Y MIYAZAKI, T HIRAI

NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN　98　(9)　1050-1053　1990

DOI： 10.2109/jcersj.98.1050 　

ISSN： 0914-5400
Preparation and Crystal Structure of Sr_<0.09>Ca_<0.91>CuO_2

YAMANE Hisanori, MIYAZAKI Yuzuru, HIRAI Toshro

Journal of the Ceramic Society of Japan　97　(1122)　143-147　1989/02/01
Publisher: The Ceramic Society of Japan
DOI： 10.2109/jcersj.97.143 　

ISSN： 1882-1022

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Sr_<0.09>Ca_<0.91>CuO_2 was obtained by heating a powder mixture of SrCO_3, CaCO_3, and CuO at 1000℃ in flowing oxygen. The compound has a tetragonal symmetry, P4/mmm, and is characterized by a=3.8581 (1), c=3.1997(1)A^^゜, Z=1, D_m= 4.86 g/cm^3, and D_<cal>=4.88 g/cm^3 The crystal structure was determined and refined to R_ρ= 3.7% by the Rietveld analysis of X- ray powder diffraction data. The compound has an oxygen-deficient perovskite structure. A copper atom is in a square plane of oxygen atoms. This square plane forms a Cu- O flat sheet sharing the oxygen atoms at vertices of the square. The bond length of Cu- O is 1.929 A^^゜. Sr(0.09) and Ca(0.91 ) atoms are statistically in an oxygen square prism. The interatomic distance of ( Ca, Sr) - O is 2.506 A^^゜. This compound is a p-type semiconductor with electric conductivity of 1.2X10^<-4> (Ω・cm)^<-1> at 22℃.
PREPARATION AND CRYSTAL-STRUCTURE OF SR0.09CA0.91CUO2 Peer-reviewed

Yamane, Hisanori, Miyazaki, Yuzuru, Hirai, Toshio

Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi-journal of the Ceramic Society of Japan　97　(2)　1989
PREPARATION AND CRYSTAL-STRUCTURE OF SR0.09CA0.91CUO2 Peer-reviewed

H YAMANE, Y MIYAZAKI, T HIRAI

NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN　97　(2)　143-147　1989

DOI： 10.2109/jcersj.97.143 　

ISSN： 0914-5400

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Misc. 33

Thermoelectric properties of Mg2Si and its derivatives: effects of lattice defects and secondary phases Invited

K. Hayashi, Y. Miyazaki, W. Saito, M. Kubouchi, Y. Ogawa, S. Suzuki, Y. Hayashibara, I. Ando

Thermoelectric Materials -Principles and Concepts for Enhanced Properties-　99-116　2020/06/08
Publisher: De Gruyter
DOI： 10.1515/9783110596526 　
熱電結晶学（III）

宮﨑讓

日本熱電学会誌　14　(2)　82-87　2017/12
熱電結晶学（I）

宮﨑讓

日本熱電学会誌　13　(3)　168-173　2017/04
熱電結晶学（II）

宮﨑讓

日本熱電学会誌　14　(1)　32-36　2017/04
金属シリサイド系熱電材料研究の現状と展望

宮﨑讓, 林慶

金属　87　(2)　20-118　2017/02
Publisher: アグネ技術センター
ISSN： 0368-6337
高マンガンケイ化物の結晶構造と熱電特性

宮﨑讓

まてりあ　55　307　2016/07

DOI： 10.2320/materia.55.307 　
熱電変換材料としての非整合複合結晶

宮﨑讓

機能材料　36　(9)　15-24　2016/01
Publisher: シー・エム・シー出版
ISSN： 0286-4835
チムニーラダー型マンガンケイ化物の結晶構造と熱電特性

宮﨑讓

日本金属学会誌　79　(11)　530-537　2015/11/01
Publisher: The Japan Institute of Metals
DOI： 10.2320/jinstmet.JA201508 　

ISSN： 0021-4876

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Crystal structure, electronic structure and thermoelectric (TE) properties of Nowotny chimney-ladder (NCL) higher manganese silicides (HMSs) are reviewed. According to a (3+1)-dimensional superspace approach, HMSs are revealed to belong to incommensurate composite crystals, wherein [Mn] and [Si] subsystems possess an irrational c-axis ratio γ=c_Mn/c_Si. The γ parameter, also represents a stoichiometry of the HMSs as MnSi_γ, dictates the electronic structure, directly relating to a valence electron counting number, VEC. The p-type TE performance can be enhanced by a partial substitution of V, Cr, etc., while n-type HMSs can be obtained by heavily substituting Mn with Fe, etc., to realize VEC>14. A unique thermal expansion has been discovered at T~800 K, which would deteriorate TE performance and hence to be avoided from a practical application point of view.<br>
21aPS-94 Intermediate ordering phase in Na_<0.58>CoO_2

Igarashi D, Miyazaki Y, Yubuta K, Kajitani T

Meeting abstracts of the Physical Society of Japan　62　(2)　538-538　2007/08/21
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
20aWG-12 Orbital States and The Fermi Surface of Ca_3Co_4O_9

Wakisaka Y, Takubo K, Mizokawa T, Suzuki Y, Miyazaki Y, Kajitani T

Meeting abstracts of the Physical Society of Japan　62　(1)　609-609　2007/02/28
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
Crystal Structure and Thermoelectric Property of Layered Cobalt Oxides

宮崎譲, 舟橋良次

Bulletin of the Ceramics Society of Japan　41　(3)　178-182　2006/03
Publisher: 社団法人日本セラミックス協会
ISSN： 0009-031X
20aPS-53 μSR studies on cobalt oxides X : Ca_<0.5>CoO_2

Sugiyama J, Nozaki H, Brewer J. H, Ansaldo E. J, Miyazaki Y, Huang X, Kajitani T

Meeting abstracts of the Physical Society of Japan　60　(2)　440-440　2005/08/19
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
大きな熱電能をもつミスフィット型層状化合物 (Ca₂CoO₃)_pCoO₂ の変調構造

宮崎譲

日本結晶学会誌　46　(1)　21-26　2004/01
Publisher: The Crystallographic Society of Japan
DOI： 10.5940/jcrsj.46.21 　

ISSN： 0369-4585

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Crystal structure of the thermoelectric compound known as "Ca₃Co₄O₉" has been determined using a 3+1 dimensional superspace group approach. The cobaltite has been revealed to be a misfit layer compound which consists of two monoclinic subsystems of [CoO₂] and [Ca₂CoO₃] . The [CoO₂] subsystem has a CdI_2- type triangular lattice of cobalt, while the [Ca₂CoO₃] subsystem compises a three-layered ordered rock salt-type slab. Since the both subsystems have incommensurate b-axis lengths, the structure formula is expressed as [Ca₂CoO₃] _pCoO₂, wherep=b_CoO2/b_Ca2CoO3. Due to the potential interaction between the subsystems, atomic displacive modulation is observed for each atom. The most significant modulation has been found in the Co-O layer of the [Ca₂CoO₃] subsystem.
Photoemission of Ca_3Co_4O_9

Hirata S, Mizokawa T, Lambert S, Michel C, Suzuki Y, Miyazaki Y, Kajitani T

Meeting abstracts of the Physical Society of Japan　58　(1)　523-523　2003/03/06
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
RbをドープしたNa__xCoO_2_の高温熱電変換特性

本橋輝樹, G.Peleckis, 小野泰弘, 宮崎譲, 梶谷剛 M.Karppinen, 山内尚雄

第64回応用物理学会学術講演会講演予稿集　1　155　2003
擬一次元銅酸化物 (Ca_1-xY_x)_yCuO₂ の結晶構造

宮崎譲

波紋　12　(3)　143-148　2002/07
Publisher: The Japanese Society for Neutron Science
DOI： 10.5611/hamon.12.143 　

ISSN： 1349-046X
24PPSB-31 複合結晶[Ca_2CoO_3]_xCoO_2の構造解析と輸送特性(24pPSB 遷移金属酸化物,領域8(強相関系分野-高温超伝導,強相関f電子系など))

宮崎譲, 小野田みつ子, 奥健夫, 菊地昌枝, 石井慶信, 森井幸生, 小野泰弘, 社本真一, 梶谷剛

日本物理学会講演概要集　57　(1)　527-527　2002/03/01
Publisher: 一般社団法人日本物理学会
ISSN： 1342-8349
24pPSB-32 Thermoelectric Properties of γ -M=CoO_2(M=Ca, Sr, Ba) Synthesized by Low-temperature Ion Exchange

Ono Y, Ishikawa Ryuji, Miyazaki Yuzuru, Kajitani T

Meeting abstracts of the Physical Society of Japan　57　(1)　527-527　2002/03/01
Publisher: 一般社団法人日本物理学会
ISSN： 1342-8349
低次元コバルト酸化物の熱電特性

宮崎譲

第３５回日本セラミックス協会基礎科学部会セミナー「セラミックスの構造制御と機能性」　50-54　2001/07
Publisher: 日本セラミックス協会基礎科学部会
Crystal Structure and themopower of low-and high-temperature phases Na_<1.5>Co_2O_4

Ono Y, Ishikawa R, Miyazaki Y, Kajitani T

Meeting abstracts of the Physical Society of Japan　55　(2)　427-427　2000/09/10
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
24aPS-73 ESR studies on the quasi one-dimensional cuprate (Ca_<1-x>Y_x)_<0.82>CuO_2

Miyazaki Y, Anderson P.A, Edwarda P.P, Kajitani T

Meeting abstracts of the Physical Society of Japan　54　(2)　467-467　1999/09/03
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
7p-PSA-18 Powder Neutron Diffraction Study of CaNiN

Shamoto S, Kato T, Miyazaki Y, Ohoyama K, Ohashi M, Yamaguchi Y, Kajitani T

Meeting abstracts of the Physical Society of Japan　52　(2)　679-679　1997/09/16
Publisher: The Physical Society of Japan (JPS)
ISSN： 1342-8349
Crystal structure and superconductivity of non-stoichiometric A15 intermetallic compounds

Sasaki A, Ono Y, Miyazaki Y, Morii Y, Kajitani T

Abstracts of the meeting of the Physical Society of Japan. Sectional meeting　1996　(3)　503-503　1996/09/13
Publisher: 一般社団法人日本物理学会
Cold-neutron scattering spectra of superconducting ceramics

Noguchi Y, Miyazaki Y, Koike Y, Kajitani T

Abstracts of the meeting of the Physical Society of Japan. Sectional meeting　1996　(3)　553-553　1996/09/13
Publisher: The Physical Society of Japan (JPS)
化学気相成長 (CVD) 法による炭酸系超伝導薄膜の作製

宮崎譲

応用物理　65　(4)　406-409　1996/04

DOI： 10.11470/oubutsu1932.65.406 　
Effect of Si substitution on the properties of YNi_2B_2C

Miyazaki Y, Saito K, Ono Y, Kajitani T

Abstracts of the meeting of the Physical Society of Japan. Sectional meeting　1995　(3)　393-393　1995/09/12
Publisher: The Physical Society of Japan (JPS)
Preparation of Sr_2CuO_2(CO_3)_<1-x>(BO_3)_x films by chemical vapor deposition

Miyazaki Y, Noguchi Y, Yamane H, Hirai T, Kajitani T

Abstracts of the meeting of the Physical Society of Japan. Annual meeting　50　(3)　491-491　1995/03/16
Publisher: The Physical Society of Japan (JPS)
30p-PSA-39 Preparation and crystal structure of C-1222

Miyazaki Y, Yamane H, Ohnishi N, Kajitani T, Hiraga K, Hirai T, Morii Y, Funahashi S

Abstracts of the meeting of the Physical Society of Japan. Annual meeting　48　(3)　306-306　1993/03/16
Publisher: The Physical Society of Japan (JPS)
New Oxide Superconductors Containing Carbonate Groups Peer-reviewed

Yamane, H., Miyazaki, Y., Hirai, T.

Journal of the Japan Society of Powder and Powder Metallurgy　40　(2)　131-136　1993

DOI： 10.2497/jjspm.40.131 　
26p-PSB-26 Superconductivity in Y-Sr-Cu-O-Co_3 system

Uehara M, Ogawa M, Nakata H, Tomimoto K, Akimitsu J, Miyazaki Y, Yamane H, Hirai T, Matsui Y

1992　(3)　336-336　1992/09/14
Publisher: The Physical Society of Japan (JPS)
26a-Q-2 Preparation and crystal structure of Cl2l2

MIYAZAKI Yuzuru, YAMANE Hisenori, OHNISHI Naoyuki, KAJITANI Tsuyoshi, MORII Yukio, FUNABASHI Susumu, HIRAGA Kenji, HIRAI Toshio

秋の分科会講演予稿集　1992　(3)　280-280　1992/09/14
Publisher: The Physical Society of Japan (JPS)
27a-PS-16 HRTEM study of ordered arrangemt of C and Cu atoms in (C_<0.4>Cu_<0.6>)Sr_2(Y_<0.86>Sr_<0.14>)Cu_2O_7

Ohnishi N, Miyazaki Y, Yamane H, Kajitani T, Hirai T, Hiraga K

秋の分科会講演予稿集　1992　(3)　382-382　1992/09/14
Publisher: The Physical Society of Japan (JPS)
27p-PS-63 HRPD Strictural Study on (Sr, Ba)_2CuO_2(CO_3)

Kajitani T, Miyazaki Y, Yamane H, Hirai T, Hiraga K, Morii Y, Funabashi S

年会講演予稿集　47　(3)　237-237　1992/03/12
Publisher: The Physical Society of Japan (JPS)

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Books and Other Publications 10

Thermoelectric energy conversion : theories and mechanisms, materials, devices, and applications

Funahashi, Ryoji, Chen, Lidong, Guilmeau, Emmanuel, Li, Qiang, Min, Gao, Miyazaki, Yuzuru

Woodhead Publishing is an imprint of Elsevier　2021

ISBN: 9780128185353
Materials Aspect of Thermoelectricity

Yuzuru Miyazaki

CRC Press　2016/12

ISBN: 9781498754903
シリサイド系熱電変換材料の最新動向

宮﨑讓

（株）電子ジャーナル　2014
Thermoelectric Nanomaterials

Yuzuru Miyazaki, Yuta Kikuchi

Springer　2013/08

ISBN: 9783642375361
Neutron Diffraction

Yuzuru Miyazaki

Intech Open Access Publisher　2012/03

ISBN: 9789535103073
CERAMIC DATA BOOK 2011/12

宮崎譲

工業製品技術協会　2011/12
熱電変換技術の基礎と応用ークリーンなエネルギー社会を目指してー

宮崎譲

シーエムシー出版　2011/11

ISBN: 9784781304809
熱電変換技術ハンドブック

宮崎譲

株式会社エヌ・ティー・エス　2008/12

ISBN: 9784860432577
環境調和型新材料シリーズ熱電変換材料

宮崎譲, 舟橋良次

日刊工業新聞社　2005/10

ISBN: 4526055387
Oxide Thermoelectrics

Y. Miyazaki, T. Kajitani

Research Signpost　2003/01

ISBN: 8177361007

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Presentations 252

酸化物熱電材料を用いたUni-leg熱電発電モジュールの設計

清水嘉, 林慶, 宮﨑讓

第21回日本熱電学会学術講演会　2024/09/25
First-Principles Study for High Thermoelectric Performance Iron-based Half-Heusler Compounds with Thermodynamic and Mechanical Stability

X. Nan, Z. Huang, K. Hayashi, H. Konishi, Y. Miyazaki

2024/09/25
チムニーラダー型化合物(Fe1-xCox)Geγ (γ ~1.52)の合成と熱電特性

黒沢立浩, 黄志成, 林慶, 宮﨑讓

第21回日本熱電学会学術講演会　2024/09/24
格子欠陥を導入したMg2Ge 単結晶のp型熱電性能

林慶, 黄志成, 竹内裕人, 李敬鋒, 宮﨑讓

第21回日本熱電学会学術講演会　2024/09/24
First-Principles Study for High Thermoelectric Performance Iron-based Half-Heusler Compounds with Thermodynamic and Mechanical Stability

X. Nan, Z. Huang, K. Hayashi, H. Konishi, Y. Miyazaki

40th International Conference on Thermoelectrics　2024/07/02
Enhancement of Thermoelectric Properties in p-type Iron-based Half-Heusler VFeSb Alloys via Titanium Alloying

Z. Huang, K. Hayashi, X. Nan, H. Konishi, Y. Miyazaki

40th International Conference on Thermoelectrics　2024/07/02
Enhanced p-type thermoelectric properties of Mg2Ge single crystals via lattice defect engineering

K. Hayashi, H. Tajeuchi, Z. Huang, N. S. Chauhan, Q. Zhang, X. Nan, H. Li, J. Pei, J. Dong, B.-P. Zhang, J.-F. Li, Y. Miyazaki

40th International Conference on Thermoelectrics　2024/07/01
Bond-engineering to Develop High-performance Fe-based Half-Heusler Alloys Invited

Yuzuru Miyazaki

40th International Conference on Thermoelectrics　2024/07/01
Fe-based Half Heusler Thermoelectric Materials Invited

Yuzuru Miyazaki

Europian Materials Research Society 2024 Spring Meeting　2024/05/30
Thermoelectric properties of Sr-substituted [Ca2(Co0.65Cu0.35)2O4]pCoO2

Y. Shimizu, K. Hayashi, Y. Miyazaki

MRM2023-IUMRS-ICA2023　2023/12
High Temperature X-ray Diffraction Study on Incommensurate Composite Crystal (Mn, Fe, V)Siγ

T. Chiba, K. Hayashi, Y. Miyazaki

The 15th Pacific Rim Conference of Ceramic Societies (PACRIM15) & The 13th Int’l Conference on High-Performance Ceramics (CICC-13)　2023/11
Enhancing Thermoelectric Properties of P-type Mg2Sn Single Crystals through Li/Si Co-Doping and Introduction of Lattice Defects

Z. Huang, K. Hayashi, Y. Miyazaki

The 15th Pacific Rim Conference of Ceramic Societies (PACRIM15) & The 13th Int’l Conference on High-Performance Ceramics (CICC-13)　2023/11
精密結晶構造解析に基づく熱電材料の開発 Invited

宮﨑讓

第54回排熱発電コンソーシアム　2023/11/06
Analysis of crystal structure and Thermoelectric properties of Sr‐substituted [Ca2CoO3]pCoO2

Y. Shimizu, K. Hayashi, Y. Miyazaki

The 19th European Conference on Thermoelectrics (ECT2023)　2023/09
Preparation and thermoelectric properties of nonstoichiometric full‐Heusler Mn2+xV1-xAl alloys

G. Kanno, K. Hayashi, Z. Huang, H. Li, Y. Miyazaki

The 19th European Conference on Thermoelectrics (ECT2023)　2023/09
Single‐phase synthesis and thermoelectric properties of nowotny chimney‐ladder FeGeγ

T. Kurosawa, K. Hayashi, Y. Miyazaki

The 19th European Conference on Thermoelectrics (ECT2023)　2023/09
非整合複合結晶の特徴と熱電材料への応用 Invited

宮﨑讓

科研費新学術領域「ハイパーマテリアル」第31回ハイパーマテリアル・セミナー　2023/09/13
高マンガンケイ化物の結晶構造と熱電特性 Invited

宮﨑讓

第28回日本熱電学会研究会「シリコンおよびケイ化物系熱電変換材料研究の最前線と新展開」　2023/07/28
Boron doping in n-type and p-type Mg2Sn on the generation of lattice defects leading to improved thermoelectric properties

Z. Huang, K. Hayashi, W. Saito, H. Takeuchi, Y. Miyazaki

The 39th Annual International conference on Thermoelectrics (ICT2023)　2023/06
Advancing the thermoelectric performance of single crystals: a case study of p-type Mg2Sn through lattice defect engineering

K. Hayashi, Z. Huang, W. Saito, J. Pei, J.F. Li, Y. Miyazaki

The 39th Annual International conference on Thermoelectrics (ICT2023)　2023/06
Superspace Approach to the Incommensurate Crystal Structure of Higher Manganese Silicide-Based Thermoelectric Materials Invited

Yuzuru Miyazaki

8th Annual Conference of Analytix-2023　2023/05/17
Incommensurate Nowotny Chimney-ladder Phases - Potential Thermoelectric Materials Invited

Yuzuru Miyazaki

International Workshop Thermoelectric Materials: from materials chemistry and physics to devices (IWT2023)　2023/04/12
Recent Progress in Manganese Silicide Thermoelectric Materials International-presentation Invited

MIYAZAKI Yuzuru

XVI Interstate Conference on Thermoelectrics and Their Applications (ISCTA 2018)　2018/10/09
精密結晶構造解析に基づく物質設計と熱電材料開発 Invited

MIYAZAKI Yuzuru

第15回日本熱電学会学術講演会　2018/09/15
Thermoelectric properties of vanadium-substituted higher manganese silicides International-presentation Invited

MIYAZAKI Yuzuru

International Conference on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE 2018)　2018/07/24
Recent Progress in Silicide-based Thermoelectric Materials International-presentation Invited

MIYAZAKI Yuzuru

37th International and 16th European Conference on Thermoelectrics (ICT & ECT 2018)　2018/07/03
Design of tilted-multilayer power generation devices using the transverse thermoelectric effect International-presentation Invited

MIYAZAKI Yuzuru

EMN Greece Meeting 2018　2018/05/14
巨大な出力因子を持つ傾斜積層熱電デバイスの設計および評価

小平直人, 生出嘉, 林慶

第14回日本熱電学会学術講演会　2017/09/11
Cr(Si_1-xCu_x)₂固溶相の熱電特性

永井宏樹, 髙松智寿, 飯島喜彦, 林慶

第14回日本熱電学会学術講演会　2017/09/11
Thermoelectric Properties of TiNiSi-based solid solutions

Y. Huang, H. Nagai, K, Hayashi

第14回日本熱電学会学術講演会　2017/09/11
フルホイスラー合金Co₂MnSiのキャリア熱伝導率と格子熱伝導率

林慶

第78回応用物理学会秋季学術講演会　2017/09/05
Mn₂VAlフルホイスラー合金の電子状態と熱電性能

李和章, 林慶

第78回応用物理学会秋季学術講演会　2017/09/05
Thermoelectric properties of Mo and Ge co-substituted CrSi3D2#DR International-presentation

H. Nakasawa, T. Takamatsu, Y. Iijima, K. Hayashi

The 15th International Conference on Advanced Materials IUMRS-ICAM 2017　2017/08/27
Thermoelectric properties of Mo and Ge co-substituted CrSi₂ International-presentation

H. Nakasawa, T. Takamatsu, Y. Iijima, K. Hayashi

The 15th International Conference on Advanced Materials IUMRS-ICAM 2017　2017/08/27
Thermoelectric Properties of Olivine-type Sulfides International-presentation

H. Nagai, K. Hayashi

The 15th International Conference on Advanced Materials IUMRS-ICAM 2017　2017/08/27
Analysis of point defects in Mg-Si-Sn ternary thermoelectric compounds International-presentation

M. Kubouchi, K. Hayashi, Y. Ogawa, W. Saito, R. Funahashi

The 15th International Conference on Advanced Materials IUMRS-ICAM 2017　2017/08/27
Thermoelectric preperties of Fe and V co-substituted higher manganese silicides International-presentation

H. Hamada, H. Nagai, M. Sato, K. Hayashi

The 15th International Conference on Advanced Materials IUMRS-ICAM 2017　2017/08/27
Enhanced thermoelectric performance in partially substituted melt grown higher manganese silicides International-presentation

H. Hamada, H. Nagai, K. Hayashi, K. Yubuta

7th International Symposium on Energy (Energy7)　2017/08/13
特異な結晶構造をもつ高マンガンケイ化物の熱電性能

濱田陽紀, 永井宏樹, 林慶, 湯葢邦夫

第28回新構造・機能制御と傾斜機能材料シンポジウム FGMs-2017　2017/08/08
Lattice defects in Mg₂Sn studied by band structure calculation and single-crystal X-ray diffraction International-presentation

W. Saito, K. Hayashi, M. Kubouchi

International Conference on Thermoelectrics ICT2017　2017/07/31
Comprehensive study on the thermoelectric properties of Co₂MnSi and Co₂FeSi International-presentation

K. Hayashi, M. Eguchi

International Conference on Thermoelectrics ICT2017　2017/07/31
Preparation and thermoelectric properties of Sn₂S₃ with electron lone pairs International-presentation

W. Saito, H. Nagai, K. Hayashi

12th Pacific Rim Conference on Ceramic and Glass Technology (PACRIM 12)　2017/05/21
Thermoelectric properties of V, Fe co-substituted MnSiγ synthesized by melt-grown method International-presentation

M. Sato, H. Hamada, K. Hayashi

12th Pacific Rim Conference on Ceramic and Glass Technology (PACRIM 12)　2017/05/21
Crystal structure and thermoelectric properties of partially substituted melt-grown higher manganese silicides International-presentation

H. Nagai, H. Hamada, K. Hayashi

12th Pacific Rim Conference on Ceramic and Glass Technology (PACRIM 12)　2017/05/21
Thermoelectric properties of lightly-substituted melt grown higher manganese silicides International-presentation

H. Hamada, H. Nagai, M. Sato, K. Hayashi

12th Pacific Rim Conference on Ceramic and Glass Technology (PACRIM 12)　2017/05/21
高マンガンケイ化物熱電材料の結晶構造に着目した性能向上アプローチ

濱田陽紀, 永井宏樹, 林慶, 湯葢邦夫

第32回排熱発電コンソーシアム　2017/04/25
溶融合成したV置換MnSi_γの結晶構造と電子物性

濱田陽紀, 林慶

第64回応用物理学会春季学術講演会　2017/03/14
Thermoelectric Properties of Cubic SnSe Phase from First Principles Calculation

Yi Huang, Kei Hayashi

第64回応用物理学会春季学術講演会　2017/03/14
Mn基フルホイスラー合金の熱電性能計算

林慶

第64回応用物理学会春季学術講演会　2017/03/14
Fe₂VAl_0.9Si_0.1/Cu傾斜積層熱電デバイスの設計および評価

小平直人, 生出嘉, 林慶

第64回応用物理学会春季学術講演会　2017/03/14
溶融合成したCo置換高マンガンシリサイドの熱電特性

永井宏樹, 濱田陽紀, 林慶, 宮﨑讓

第64回応用物理学会春季学術講演会　2017/03/14
溶融合成によるV, Fe 共置換MnSi_γの作製と熱電性能

佐藤美嘉, 濱田陽紀, 林慶

第64回応用物理学会春季学術講演会　2017/03/14
非共有電子対をもつSn₂S₃の熱電特性

齋藤亘, 林慶, 永井宏樹

第64回応用物理学会春季学術講演会　2017/03/14
溶融合成したZn₄Sb₃の熱電性能と結晶構造

横山相朔, 林慶, 石井健太郎, 髙松智寿

第64回応用物理学会春季学術講演会　2017/03/14
ノンドープ銅酸化物超伝導体T'-La_1.8Eu_0.2CuO₄の電子輸送特性からみた電子状態

大橋幸記, 川股隆行, 髙松智寿, 足立匡, 加藤雅恒, 内藤秀磨, 林慶, 小池洋二

第71回応用物理学会東北支部学術講演会　2016/12/01
溶融合成したβ-Zn₄Sb₃の熱電性能

横山相朔, 林慶, 石井健太郎, 髙松智寿

第71回応用物理学会東北支部学術講演会　2016/12/01
溶融合成によるV, Fe共置換MnSi_γの作製と熱電性能

佐藤美嘉, 濱田陽紀, 林慶

第71回応用物理学会東北支部学術講演会　2016/12/01
非共有電子対をもつSn₂S₃の熱電特性

齋藤亘, 永井宏樹, 林慶

第71回応用物理学会東北支部学術講演会　2016/12/01
(Cr_1-xNb_x)(Si_1-yGe_y)₂固溶相の熱電特性

島田昌典, 髙松智寿, 飯島喜彦, 林慶

第71回応用物理学会東北支部学術講演会　2016/12/01
チムニーラダー型高マンガンケイ化物熱電材料の高性能化

濱田陽紀, 永井宏樹, 菊池裕太, 林慶

粉体粉末冶金協会平成28年度秋季大会(第118回講演大会)　2016/11/09
ジントル化合物Zn₄Sb₃熱電変換材料の高性能化

林慶, 横山相朔, 石井健太郎, 髙松智寿

粉体粉末冶金協会平成28年度秋季大会(第118回講演大会)　2016/11/09
Enhanced thermoelectric properties of chimney-ladder higher manganese silicides International-presentation

Global Congress & Expo on Materials Science & Nanoscience　2016/10/24
単結晶X線回折を用いたMg₂Si_1-xSn_xにおける格子間Mgの定量的評価

窪内将隆, 小川陽平, 林慶, 髙松智寿

日本金属学会 2016年秋季講演大会　2016/09/21
Thermoelectric properties of densified misfit-layered sulfides [Ln₂S₂]_pNbS₂ (Ln=Lanthanides) International-presentation

K. Ishii, K. Hayashi

The 14th European Conference on Thermoelectrics (ECT2016)　2016/09/20
ノンドープ銅酸化物超伝導体T'-La_1.8Eu_0.2CuO₄の電子輸送特性

大橋幸記, 川股隆行, 髙松智寿, 足立匡, 加藤雅恒, 内藤秀磨, 林慶, 小池洋二

日本物理学会 2016年秋季大会　2016/09/13
Mg₂Snの格子間サイトにおけるMgの定量的評価

窪内将隆, 小川陽平, 林慶, 髙松智寿

第77回応用物理学会秋季学術講演会　2016/09/13
Mg₂Si/Alコンポジットの熱電性能

林原佑太, 窪内将隆, 小川陽平, 林慶

第13回日本熱電学会学術講演会　2016/09/05
溶融合成したV, Ru共置換高マンガンシリサイドの熱電特性

永井宏樹, 濱田陽紀, 林慶

第13回日本熱電学会学術講演会　2016/09/05
還元拡散法を用いたCrSi₂およびMo置換CrSi₂の合成と熱電特性

中沢駿仁, 髙松智寿, 飯島喜彦, 林慶

第13回日本熱電学会学術講演会　2016/09/05
Mg₂Si_1-xSn_x系の伝導型に対する格子間Mgの効果

窪内将隆, 小川陽平, 林慶, 髙松智寿

第13回日本熱電学会学術講演会　2016/09/05
B-doping effect on the thermoelectric properties of Mg₂Si International-presentation

Masataka Kubouchi, Kei Hayashi

CWRU-TU 3rd Joint workshop　2016/08/09
Structural and thermoelectric properties of TTF-I#D0.71#DE organic compound International-presentation

Kei Hayashi, Kento Kuba

The 2016 Compound Semiconductor Week (CSW2016)　2016/06/26
Strategies and approaches to enhance thermoelectric properties of silicide-based materials International-presentation

Haruki Hamada, Hiroki Nagai, Masataka Kubouchi, Kei Hayashi

The 35th International Conference & 1st Asian Conference on Thermoelectrics (ICT/ACT 2016)　2016/05/29
Crystal structure and thermoelectric properties of Ru-substituted higher manganese silicides International-presentation

H. Nagai, H. Hamada, K. Hayashi

The 35th International Conference & 1st Asian Conference on Thermoelectrics (ICT/ACT 2016)　2016/05/29
Structural and Thermoelectric Properties of Ternary Full-Heusler Alloys International-presentation

M. Eguchi, K. Hayashi

The 35th International Conference & 1st Asian Conference on Thermoelectrics (ICT/ACT 2016)　2016/05/29
Enhanced thermoelectric properties of chimney-ladder higher manganese silicides International-presentation

Haruki Hamada, Yuta Kikuchi, Kunio Yubuta, Kei Hayashi

EMN Croatia Meeting 2016　2016/05/04
溶融合成したV置換MnSi_γの熱電特性

濱田陽紀, 林慶

第63回応用物理学会春季学術講演会　2016/03/19
ソフト化学法を用いたCrSi₂の合成と熱電特性評価

中沢駿仁, 高松智寿, 飯島喜彦, 林慶

第63回応用物理学会春季学術講演会　2016/03/19
Incommensurate Nowotny chimney-ladder compounds as potential thermoelectric materials International-presentation

Y. Kikuchi, H. Hamada, S. Naito, K. Hayashi, K. Yubuta

International Conference on Thermoelectric Materials Science 2015 (TMS2015)　2015/11/09
Preparation and Thermoelectric Properties of Cr_1-xNb_xSi₂ International-presentation

H. Nagai, T. Takamatsu, Y. Iijima, K. Hayashi

10th International Symposium on Medical, Bio- and Nano-Electronics　2015/11/09
Cr1-xNbxSi2 の熱電特性の焼結温度依存性

永井宏樹, 髙松智寿, 飯島喜彦, 林慶

第12回日本熱電学会学術講演会　2015/09/07
SPSで合成したMg2+xSiの熱電性能における原料Si粉末の粒径依存性

小川陽平, 窪内将隆, 林慶

第12回日本熱電学会学術講演会　2015/09/07
Crystal Structure and Thermoelectric Properties of Incommensurate Higher Manganese Silicides International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta

APERIODIC 2015　2015/08/30
Effect of interstitial Mg in Mg2+xSi on electrical conductivity and Seebeck coefficient International-presentation

M. Kubouchi, Y. Ogawa, K. Hayashi, T. Takamatsu

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Synthesis of Mo-substituted CrSi2 by the soft-chemical technique International-presentation

H. Nakasawa, T. Takamatsu, Y. Iijima, K. Hayashi

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Thermoelectric properties of Cr1-xNbxSi2 International-presentation

H. Nagai, T. Takamatsu, Y. Iijima, K. Hayashi

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Fabrication of TTF-Ix thin films for thermoelectric applications International-presentation

K. Kuba, K. Hayashi

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Fabrication and Power Generation of a Silicide-based Thermoelectric Module International-presentation

S. Naito, R. Funahashi, Y. Matsumura, S. Katsuyama, Y. Kikuchi, K. Hayashi

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Crystal structure and thermoelectric properties of Nowotny chimney-ladder VGeγ International-presentation

H. Hamada, Y. Kikuchi, K. Hayashi

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Theoretical investigation of the excellent p-n control in yttrium aluminoborides International-presentation

Sahara, T. Mori, S. Maruyama, K. Hayashi, T. Kajitani

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Enhanced thermoelectric performance of higher manganese silicides through the control of valence electron counts International-presentation

Y. Kikuchi, H. Hamada, S. Naito, K. Hayashi, K. Yubuta

34th Annual International Conference on Thermoelectrics (ICT2015)　2015/06/28
Enhanced thermoelectric performance of lightly Cr-substituted higher manganese silicides International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta

The 1st International Conference on Microstructure and Property of Materials (MPM-2015)　2015/05/26
Nowotny Chimney-ladder Higher Manganese Silicides as Potential Thermoelectric Compounds International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta

Energy Materials Nanotechnology Phuket 2015 (EMN Phuket 2015)　2015/05/04
Chimney-ladder型MnSiγ相における遷移金属の微量置換効果

菊池祐太, 濱田陽紀, 林慶

第62回応用物理学会春季学術講演会　2015/03/11
Mg2+xSiの格子間サイトにおけるMgの定量的評価

窪内将隆, 小川陽平, 林慶, 髙松智寿

第62回応用物理学会春季学術講演会　2015/03/11
パルスレーザー堆積法で作製した(Mn,Fe)Si～1.7 薄膜のバンドギャップ

石井健太郎, 林慶

第62回応用物理学会春季学術講演会　2015/03/11
Chimney-Ladder 型化合物VGeγの合成と熱電特性

濱田陽紀, 菊池祐太, 林慶

第69回応用物理学会東北支部学術講演会　2014/12/04
Cr1-xNbxSi2の熱電特性

永井宏樹, 髙松智寿, 飯島喜彦, 林慶

第69回応用物理学会東北支部学術講演会　2014/12/04
有機化合物TTF-Ixの薄膜作製と熱電特性

久芳健人, 林慶, 髙松智寿

第69回応用物理学会東北支部学術講演会　2014/12/04
Cr1-xAxSi2(A =Nb, Mo)の熱電特性

永井宏樹, 髙松智寿, 飯島喜彦, 林慶

第11回日本熱電学会学術講演会　2014/09/29
Chimney-ladder 型 MnSiγにおける V 置換効果

菊池祐太, 中條隆貴, 林慶

第75回応用物理学会秋季学術講演会　2014/09/17
Pyroelectric Energy Harvesting Using BaTiO3 Compounds International-presentation

K. Hayashi, E. Aikawa, T. Ueno, T. Kajitani

19th International Conference on Ternary and Multinary Compounds (ICTMC-19)　2014/09/01
Structural and Thermoelectric Properties of Ternary Full-Heusler Alloys International-presentation

M. Eguchi, K. Hayashi

19th International Conference on Ternary and Multinary Compounds (ICTMC-19)　2014/09/01
Preparation of TTF-Ix Thin Films by Evaporation Method for Organic Thermoelectric Devices International-presentation

K. Hayashi, K. Kuba

15th International Union of Materials Research Societies, International Conference in Asia (IUMRS-ICA2014)　2014/08/24
Nowotny chimney-ladder compounds as potential thermoelectric materials International-presentation

Y. Kikuchi, T. Nakajo, K. Hayashi

5th International Congress on Ceramics (ICC5)　2014/08/17
Valence Electron Control on the Incommensurate Higher Manganese Silicides International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta

International conference and summer school on advanced silicide technology 2014 (ICSS-SILICIDE2014)　2014/07/19
Effects of Vanadium Substitution on the Crystal Structure and Thermoelectric Properties of Higher Manganese Silicide International-presentation

Y. Kikuchi, T. Nakajo, K. Hayashi, K. Yubuta

6th Forum on New Materials (CIMTEC2014)　2014/06/15
Electronic Structure and Thermoelectric Performance of Ternary Yb-Mg-Si Phases International-presentation

M. Kubouchi, K. Hayashi

6th Forum on New Materials (CIMTEC2014)　2014/06/15
粒径制御したアルミノボライドY0.56Al0.6B14の熱電特性

丸山恵史, 西村聡之, 林慶, 梶谷剛, 森孝雄

第61回応用物理学会春季学術講演会　2014/03/17
チムニーラダー型化合物MGeγ (M = Rh, Ir) の結晶構造と熱電特性

中條隆貴, 菊池祐太, 林慶

第61回応用物理学会春季学術講演会　2014/03/17
(3+1)次元複合結晶MnSiγの高温における結晶構造変化

菊池祐太, 中條隆貴, 林

第61回応用物理学会春季学術講演会　2014/03/17
Mg2-xSiの格子間サイトにおけるMgの定量的評価

窪内将隆, 林慶

第61回応用物理学会春季学術講演会　2014/03/17
ハーフメタルフルホイスラー合金Co2Cr1-xMnxAlの熱電特性

江口真央, 林慶

第68回応用物理学会東北支部学術講演会　2013/12/05
BドープMg2Siの結晶構造とその熱電性能

窪内将隆, 林慶

第68回応用物理学会東北支部学術講演会　2013/12/05
チムニーラダー型RhGeγ(γ ～ 1.294) の合成と熱電特性

中條隆貴, 菊池祐太, 林慶

第68回応用物理学会東北支部学術講演会　2013/12/05
大気中で溶融合成したマグネシウムシリサイドの熱電特性

鈴木翔悟, 林慶

第68回応用物理学会東北支部学術講演会　2013/12/05
熱電材料研究のこれまでとこれから

東北大学工学部応用物理学科創立50周年記念講演会　2013/11/09
特異な結晶構造を持つマンガンケイ化物系熱電材料の高性能化

菊池祐太, 林慶

第５回マイクロ・ナノ工学シンポジウム　2013/11/05
イットリウムホウ化物の合成と熱電特性

丸山恵史, Anastasiia Prytuliak, 林慶, 梶谷剛, 森孝雄

第74回応用物理学会秋季学術講演会　2013/09/16
(Mn1-xMx)Siγ (M=Cr, Fe)の高温における相変化および耐酸化性の評価

菊池祐太, 中條隆貴, 林慶

第10回日本熱電学会学術講演会　2013/09/08
チムニーラダー型RhGeγ (γ～1.294)の合成と熱電特性

中條隆貴, 菊池祐太, 林慶

第10回日本熱電学会学術講演会　2013/09/08
Thermoelectric Materials International-presentation

Y. Miyazaki, Y. Kikuchi, Y. Saito, K. Hayashi, K. Yubuta

The 15th Asian Chemical Congress　2013/08/19
B and Sb doping effects on thermoelectric properties of magnesium silicide International-presentation

M. Kubouchi, K. Hayashi, Y. Miyazaki

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC SILICIDE 2013)　2013/07/27
Studies on thermal stability of higher manganese silicide by means of in situ XRD and TG-DTA International-presentation

Y. Kikuchi, T. Nakajo, K. Hayashi, Y. Miyazaki

Asia-Pacific Conference on Green Technology with Silicides and Related Materials (APAC SILICIDE 2013)　2013/07/27
Structural and pyroelectric properties of Ca-doped BaTiO₃ International-presentation

K. Hayashi, E. Aikawa, T. Ueno, T. Kajitani, Y. Miyazaki

The 32nd International Conference on Thermoelectrics　2013/06/30
Quantitative analysis of interstitial Mg in Mg₂Si studied by single crystal X-ray diffraction International-presentation

M. Kubouchi, K. Hayashi, Y. Miyazaki

The 32nd International Conference on Thermoelectrics　2013/06/30
Thermal stability of 3d metal substituted higher manganese silicides International-presentation

Y. Kikuchi, T. Nakajo, K. Hayashi, Y. Miyazaki

The 32nd International Conference on Thermoelectrics　2013/06/30
Excellent p- and n-type control and additive effect on thermoelectric properties of aluminoboride International-presentation

S. Maruyama, Y. Miyazaki, K. Hayashi, T. Kajitani, T. Mori

The 32nd International Conference on Thermoelectrics　2013/06/30
アルミノボライドの緻密化と添加効果

丸山恵史, 宮﨑讓, 林慶, 梶谷剛, 森孝雄

第60回応用物理学会春季学術講演会　2013/03/26
熱電材料およびその応用に関する最新の研究開発動向

菊池祐太, 林慶

平成25年電気学会全国大会(創立125周年記念大会)　2013/03/20
Thermoelectric properties of B and Sb co-doped Mg₂Si International-presentation

M. Kubouchi, K. Hayashi, T. Ueno, Y. Miyazaki

7th International Symposium on Medical, Bio- and Nano-Electronics　2013/03/07
Li_0.5Fe_2.5O₄薄膜の作製とスピンゼーベック効果

田端雅弘, 林慶, 宮﨑譲

第67回応用物理学会東北支部学術講演会　2012/12/06
Si仕込み量を調整した(Mn_0.7Fe_0.3)Si_γの熱電特性

中條隆貴, 菊池祐太, 上野亨, 林慶, 宮﨑讓

第67回応用物理学会東北支部学術講演会　2012/12/06
Thermoelectric properties of p-type MnSiγ (γ~1.7) substituted by transition metal elements based on VEC rule International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta, Y. Miyazaki

IUMRS International Conference on Electronic Materials　2012/09/23
First-principles study and thermoelectric performance of heusler alloys Fe₂TiSn_1-xSi_x International-presentation

F. Kobayashi, K. Hayashi, Y. Miyazaki

IUMRS International Conference on Electronic Materials　2012/09/23
Synthesis and thermoelectric properties of YAl_xB₁₄ International-presentation

S. Maruyama, Y. Miyazaki, K. Hayashi, T. Kajitani, T. Mori

IUMRS International Conference on Electronic Materials　2012/09/23
Thermoelectric properties of misfit layered sulfides [Ln₂S₂]_pNbS₂ (Ln=lanthanides) International-presentation

S. Maruyama, Y. Miyazaki, K. Hayashi, T. Kajitani, T. Mori

IUMRS International Conference on Electronic Materials　2012/09/23
自動車排熱をターゲットとする熱電変換材料の開発

宮﨑讓, 菊池祐太, 齊藤祥二, 林慶

第73回応用物理学会学術講演会　2012/09/11
元素置換によるp型MnSi_γ (γ~1.7) の熱電性能向上

菊池祐太, 齊藤祥二, 林慶, 湯蓋邦夫, 梶谷剛, 宮﨑讓

第73回応用物理学会学術講演会　2012/09/11
アルミノボライドの合成とp型-n型制御

丸山恵史, 宮﨑讓, 林慶, 梶谷剛, 森孝雄

第73回応用物理学会学術講演会　2012/09/11
ホウ素をドープしたMg₂Siの熱電特性

窪内将隆, 林慶, 上野亨, 宮﨑讓

第9回日本熱電学会学術講演会　2012/08/27
Crystal structure and thermoelectric properties of misfit layered sulfides [Ln₂S₂]_pNbS₂ (Ln=lanthanides) International-presentation

The 31st International & 10th European Conference on Thermoelectrics　2012/07/09
Crystal structure and thermoelectric properties of partially Cr-substituted MnSi_γ (γ~1.7) International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta, Y. Miyazaki

The 31st International & 10th European Conference on Thermoelectrics　2012/07/09
価電子数制御によるマンガンシリサイド系熱電材料の性能向上

第59回応用物理学関係連合講演会シンポジウム講演　2012/03/15
Valence electron control on the chimney-ladder-type higher manganese silicides International-presentation

Joint Seminar JSPS-CNRS, New concept for nanostructured thermoelectric oxides　2011/11/08
熱電変換材料の基礎と応用

日本原子力研究開発機構第446回基礎科学セミナー　2011/07/13
Chimney-ladder manganese silicides -incommensurability, valence electron counts and thermoelectric properties International-presentation

International Discussion Meeting on Thermoelectrics and Related Functional Materials　2011/06/14
イントロダクトリー

第58回応用物理学関係連合講演会　2011/03/24
(Mn_1-xCr_x)Si_gの合成と熱電特性

菊池祐太, 齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第58回応用物理学関係連合講演会　2011/03/24
MgCu₂O₃ の合成と電気化学特性

小林史弥, 丸山恵史, 梶谷剛

第65回応用物理学会東北支部学術講演会　2010/11/25
(Mn_1-xCr_x)Si_γの合成と熱電特性

菊池祐太, 齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第65回応用物理学会東北支部学術講演会　2010/11/25
Preparation and electrochemical properties of MgCu₂O₃ International-presentation

F. Kobayashi, S. Maruyama

3rd International Congress on Ceramics, ICC3　2010/11/14
Preparation and thermoelectric properties of (Mn_1-xCr_x)Si_γ (γ ~ 1.7) solid solution International-presentation

Y. Kikuchi, K. Hayashi, K. Yubuta

3rd International Congress on Ceramics, ICC3　2010/11/14
Valence Electron Control in Higher Manganese Silicide MnSi_γ International-presentation

Y. Saito, Y. Kikuchi, K. Hayashi, K. Yubuta

3rd International Congress on Ceramics, ICC3　2010/11/14
Preparation of β-FeSi₂ and MnSi_1.7+δ Bulks from Metal Compact Bodies Using a Na-Si Melt and Their Thermoelectric Properties International-presentation

T. Yamada, E. Kariya, H. Morito, J. Takahashi, H. Yamane

3rd International Congress on Ceramics, ICC3　2010/11/14
(Mn_1-xCo_x)Si_gamma (gamma~ 1.7) 固溶相の合成と熱電特性

齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第71回応用物理学会学術講演会　2010/09/14
(Mn_1-xCo_x)Si_gamma (gamma~ 1.7) 固溶相の合成と熱電特性

齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第7回日本熱電学会学術講演会　2010/08/19
Preparation and Thermoelectrical Properties of Higher Manganese Silicide Bulk Prepared From a Mn Compact Using a Na-Si Melt International-presentation

Takahro Yamada, Hisanori Yamane

Asia-Pacific Conference on Semiconducting Silicides and Related Materials Science and Technology Towards Sustainable Optoelectronics　2010/07/24
Effect of Co-substitution on the structure and thermoelectric properties of chimney-ladder solid solution (Mn_1-xCo_x)Si_gamma (gamma~ 1.7) International-presentation

Y. Saito, K. Hayashi, K. Yubuta, T. Kajitani

5th Forum on New Materials, CIMTEC2010　2010/06/13
Validity of MgFe₂O₄ Normal Spinel as a Cathode Material for Rechargeable Battery International-presentation

S. Maruyama

5th Forum on New Materials, CIMTEC2010　2010/06/13
MnSi_g (g~1.7) 系化合物における価電子数制御と熱電特性

第１５回シリサイド系半導体研究会　2010/03/21
層状コバルト酸化物 A_xCoO₂ (A = Na, Ca, Sr, Ba) における層間イオンの規則配列と熱電特性

五十嵐大, 湯葢邦夫, 井川直樹, 梶谷剛

第57回応用物理学関係連合講演会　2010/03/17

More details Close

19a-ZC-8
デラフォサイト型 CuFe_0.5-xCr_0.5Mg_xO₂ 固溶体の熱電特性

野崎友大, 林慶, 梶谷剛

第57回応用物理学関係連合講演会　2010/03/17

More details Close

19a-ZC-5
Preparation and thermoelectric properties of (Mn_1-xCr_x)Si_g (g~ 1.7) solid solution International-presentation

Yuta Kikuchi, Yoshitsugu Saito, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Preparation and electrochemical properties of MgCu₂O₃ International-presentation

Fumiya Kobayashi, Satofumi Maruyama, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Substitution effect on thermoelectric properties of chimney-ladder compound MnSi_g (g~ 1.74) International-presentation

Yoshitsugu Saito, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Ion-exchanged magnesium spinel as a possible cathode material International-presentation

Satofumi Maruyama, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Fabrication of silicide thermoelectric modules using TiSi₂ electrodes International-presentation

Shota Kikuchi, Yoshitsugu Saito, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Inelastic neutron scattering study on the triangular lattice antiferromagnet CuMnO₂ International-presentation

Ryohei Fukatsu, Tomohiro Nozaki, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Thermoelectric properties of ZnMgO/ZnO multilayer International-presentation

Motoki Nishiguchi, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Thermoelectric properties of CuFeO₂ enhanced by nanovoid structure International-presentation

Syuho Hanasaka, Tomohiro Nozaki, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Low temperature thermoelectric properties of ytterbium compounds International-presentation

Masaaki Kuroda, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
Structural and thermoelectric properties of silicide thin films International-presentation

Koumei Takeda, Kei Hayashi, Tsuyoshi Kajitani

5th International Symposium on Medical, Bio- and Nano-electronics　2010/02/24
alpha'-NaxCoO2の変調構造

井川直樹, 湯葢邦夫, 梶谷剛

第70回応用物理学会学術講演会　2009/09/08
イオン交換法によって合成されたBaxCoO2の結晶構造と熱電特性

五十嵐大, 井川直樹, 湯葢邦夫, 梶谷剛

第70回応用物理学会学術講演会　2009/09/08
Chimney-Ladder型化合物(Mn_1-xFe_x)Si_gamma (gamma~ 1.73) の合成と熱電特性 (II)

齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第70回応用物理学会学術講演会　2009/09/08
層状コバルト酸化物の固体化学とそれに基づいた酸化物熱電材料の設計

日本化学会第３回関東支部大会　2009/09/04
Valence electron control in Fe-substituted chimney-ladder solid solution (Mn_1-xFe_x)Si_γ (γ~ 1.7) International-presentation

Y. Saito, K. Hayashi, K. Yubuta, T. Kajitani

28th International Conference on Thermoelectrics　2009/07/26
Local structure of [(Ca,Bi)₂CoO₃]_0.62CoO₂ by HREM observation International-presentation

K. Yubuta, X. Y. Huang, T. Kajitani

28th International Conference on Thermoelectrics　2009/07/26
Precise control of Na concentration in the layered cobaltate γ-Na_xCoO₂ International-presentation

D. Igarashi, K. Yubuta, T. Kajitani

28th International Conference on Thermoelectrics　2009/07/26
Preparation and thermoelectric properties of (Mn_1-xFe_x)Si_γ (γ~1.7) solid solution International-presentation

Y. Saito, K. Hayashi, K. Yubuta, T. Kajitani

28th International Conference on Thermoelectrics　2009/07/26
Preparation, crystal structure and thermoelectric properties of Fe-substituted higher manganese silicide (Mn1-xFex)Sig International-presentation

Yoshitsugu Saito, Kei Hayashi, Tsuyoshi Kajitani

International Workshop on Relationships between (nano)structures and thermoelectric properties　2009/07/22
Chimney-ladder 型化合物 (Mn_1-xFe_x)Si_g (g~1.7) の合成と熱電特性

齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

第56回応用物理学関係連合講演会　2009/03/30
[(Ca,Bi)₂CoO₃]_0.62CoO₂ の高分解能電子顕微鏡観察

湯葢邦夫, 黄向陽, 梶谷剛

第56回応用物理学関係連合講演会　2009/03/30
Mo 置換したペロブスカイト型 CaMn_1-xMo_xO₃ の高温熱電特性

川島史也, 林慶, 梶谷剛

第56回応用物理学関係連合講演会　2009/03/30
Aperiodic compounds as potential thermoelectric materials International-presentation

33rd International Conference & Exposition on Advanced Ceramics & Composites　2009/01/18
マンガンケイ化物系熱電材料の精密構造解析とそれに基づく性能向上の試み

齊藤祥二, 林慶, 湯葢邦夫, 梶谷剛

次世代スーパーコンピュータプロジェクトナノ統合拠点の物性科学ワーキンググループ連続研究会ー新しい概念に基づく熱電材料とその物理ー　2008/12/12
(3+1)-Dimensional Superspace Group Approach to the Crystal Structure of Higher Manganese Silicide MnSi_gamma International-presentation

D. Igarashi, K. Hayashi, K. Yubuta, T. Kajitani

The IUMRS International Conference in Asia 2008　2008/12/09
超空間群を用いたChimney-Ladder型化合物MnSi_gamma (gamma~ 1.74) の結晶構造解析

五十嵐大, 林慶, 湯葢邦夫, 梶谷剛

第69回応用物理学会学術講演会　2008/09/02
(3+1)-dimensional superspace group approach to the crystal structure of Chimney-Ladder compound MnSi_γ (γ~1.74) International-presentation

D. Igarashi, K. Yubuta, T. Kajitani

27th International Conference on Thermoelectrics　2008/08/03
Effects of Na atom ordering on the physical properties in Na_0.58CoO₂ International-presentation

D. Igarashi, K. Yubuta, T. Kajitani

27th International Conference on Thermoelectrics　2008/08/03
Discommensuration of doped Co-121 International-presentation

X. Y. Huang, K. Yubuta, T. Kajitani

27th International Conference on Thermoelectrics　2008/08/03
Excess oxygen in rock-salt-type layers of misfit-layered Bi-based oxides International-presentation

K. Yubuta, I. Terasaki, T. Kajitani

27th International Conference on Thermoelectrics　2008/08/03
Aperiodic cuprates and cobaltates International-presentation

Solid State Chemistry: Past & Future　2008/04/18
[(Ca_0.90Sr_0.10)₂CoO₃]_0.61CoO₂単結晶の擬非整合結晶構造

湯葢邦夫, 黄向陽, 梶谷剛

第55回応用物理学関係連合講演会　2008/03/27
Bi_2-2xCa_1+2xMn₂O₇ (0.7 ≤ x ≤ 1.0) の結晶構造と熱電特性

黄向陽, 梶谷剛

第55回応用物理学関係連合講演会　2008/03/27
Preparation, Crystal Structure and Physical Properties of a'-Na_xCoO₂ International-presentation

X.Y.Huang, K. Yubuta, N. Igawa, T. Kajitani

Zing Solid State Chemistry　2008/03/10
Chemical Tuning of the Misfit-layered Cobaltate $$[Ca₂CoO₃]_pCoO₂$$ International-presentation

32nd International Conference & Exposition on Advanced Ceramics & Composites　2008/01/27
Transport Properties of Delafossite-type CuCr_1-xMg_xO₂ (x = 0, 0.02) Single Crystal International-presentation

X. Y. Huang, K. Yubuta, T. Kajitani

7th Pacific Rim Conference on Ceramic and Glass Technology　2007/11/11
The Effect of the Misfit Parameter on the Physical Properties of Misfit-Layered Cobalt Oxides International-presentation

H. Abe, S. Begum, K. Yubuta, X. Y. Huang, T. Kajitani

7th Pacific Rim Conference on Ceramic and Glass Technology　2007/11/11
Crystal structure and electrical transport properties of Bi and V substituted CaMnO₃ International-presentation

X. Y. Huang, T. Kajitani

International Symposium on Innovative Materials for Processes in Energy Systems, IMPRES　2007/10/28
Na_0.58CoO₂ の中間規則相

五十嵐大, 湯葢邦夫, 梶谷剛

日本物理学会第62回年次大会　2007/09/21
高配向層状コバルト酸化物の作製とその熱電特性

生出嘉, 黄向陽, 湯葢邦夫, 梶谷剛

第68回応用物理学会学術講演会　2007/09/04
Na_0.58CoO₂ における7a×7a相

五十嵐大, 湯葢邦夫, 梶谷剛

第68回応用物理学会学術講演会　2007/09/04
Ca_2-xA_xMnO₄ (A = La, Bi, 0 ≤ x ≤ 0.4) の結晶構造と熱電特性

黄向陽, 川島史也, 梶谷剛

第68回応用物理学会学術講演会　2007/09/04
Preparation, crystal structure and thermoelectric properties of La_2-2xCa_1+2xMn₂O₇ International-presentation

D. Abe, T. Kajitani

26th International Conference on Thermoelectrics　2007/06/03
High-resolution transmission electron microscopy study of [(Ca_0.90Sr_0.10)₂CoO₃]_0.61[CoO₂] single crystal International-presentation

K. Yubuta, X. Y. Huang, T. Kajitani

26th International Conference on Thermoelectrics　2007/06/03
Triclinic Crystal Structure of [(Bi_1-xCo_x)₂(Sr_1-yBi_y)₂O_4+δ]_p[CoO₂]₂ with p~1.05 and δ~0.7 International-presentation

T. Kajitani, S. Begum, K. Yubuta

26th International Conference on Thermoelectrics　2007/06/03
The thermoelectric properties of α’-Na_xCoO₂ International-presentation

X. Y. Huang, K. Yubuta, T. Kajitani

26th International Conference on Thermoelectrics　2007/06/03
Preparation and high-temperature thermoelectric properties of textured cobaltite ceramics International-presentation

Y. Oide, X. Y. Huang, K. Hayashi, T. Kajitani

26th International Conference on Thermoelectrics　2007/06/03
ナノブロックインテグレーションによる層状コバルト酸化物系熱電変換材料の開発

第54回応用物理学関係連合講演会　2007/03/27
La_2-2xCa_1+2xMn₂O₇ の合成と熱電特性

阿部大介, 梶谷剛

第54回応用物理学関係連合講演会　2007/03/27
α’-Na_xCoO₂ の熱電特性

黄向陽, 湯蓋邦夫, 梶谷剛

第54回応用物理学関係連合講演会　2007/03/27
ミスフィット層状酸化物の岩塩層中の過剰酸素

湯蓋邦夫, 寺崎一郎, 梶谷剛

第54回応用物理学関係連合講演会　2007/03/27
化学修飾 Sr_0.35CoO₂ の結晶構造

湯蓋邦夫, 長谷川裕毅, 梶谷剛

第54回応用物理学関係連合講演会　2007/03/27
Ca₃Co₄O₉ の軌道状態とフェルミ面

脇坂祐輝, 田久保耕, 溝川貴司, 鈴木洋介, 梶谷剛

日本物理学会 2007 年春季大会　2007/03/18
化学修飾された層状コバルト酸化物の結晶構造と輸送特性

五十嵐大, 湯蓋邦夫, 梶谷剛

応用物理学会東北支部第 61 回学術講演会　2006/12/07
層状酸化物La_2-2xCa_1-2xMn₂O₇の合成と輸送特性

阿部大介, 梶谷剛

応用物理学会東北支部第 61 回学術講演会　2006/12/07
Crystal structure of ion-exchanged cobalt oxide Ca_xCoO₂ International-presentation

Aperiodic 2006　2006/09/17
gamma-Na_xCoO₂ の高温熱電特性

黄向陽, 湯蓋邦夫, 梶谷剛

第６７回応用物理学会学術講演会　2006/08/29
beta-A_xV₂O₅ (A = Cu, Sr) の合成と熱電特性

阿部大介, 酒井英明, 梶谷剛

第６７回応用物理学会学術講演会　2006/08/29
Crystal Structure of Na_0.5CoO₂: Nearly a Commensurate Misfit-Layered Cobalt Oxide International-presentation

D. Igarashi, K. Yubuta, T. Kajitani

25th International Conference on Thermoelectrics　2006/08/06
Thermogravimetric Study and High-Temperature Thermoelectric Properties of [(Ca_1-xA_x)₂(Co_1-yB_y)O₃]_0.62CoO₂ (A = Sr, Bi: B = Cu, Pb, Ru, Nb, Ta) International-presentation

Y. Oide, Y. Ono, X. Y. Huang, T. Kajitani

25th International Conference on Thermoelectrics　2006/08/06
High-resolution electron microscopy of thermoelectric compounds Bi-(Sr,Ba)-Rh-O International-presentation

K. Yubuta, S. Okada, I. Terasaki, T. Kajitani

25th International Conference on Thermoelectrics　2006/08/06
The high temperature thermoelectric properties of textured cobaltites ceramics International-presentation

X. Y. Huang, K. Yubuta, T. Kajitani

25th International Conference on Thermoelectrics　2006/08/06
Crystal structure and thermoelectric properties of beta-A_xV₂O₅ (A = Cu, Sr) International-presentation

H. Sakai, D. Abe, T. Kajitani

25th International Conference on Thermoelectrics　2006/08/06
Crystal structure and thermoelectric properties of ion-exchanged A_xCoO₂ (A = Ca, Sr, Ba) International-presentation

Y. Hasegawa, D. Igarashi, X. Y. Huang, T. Kajitani

IOM3 Materials Congress 2006　2006/04/05
高分解能電子顕微鏡観察によるBi-Ca-Co-Oの結晶構造

湯蓋邦夫, シャハナズベグム, 小野泰弘, 梶谷剛

第５３回応用物理学関係連合講演会　2006/03/22
超空間群を用いた Na_0.5CoO₂ の結晶構造解析

五十嵐大, 湯蓋邦夫, 梶谷剛

第５３回応用物理学関係連合講演会　2006/03/22
組織制御された [Ca₂CoO₃]_0.62CoO₂ の高温熱電特性

黄向陽, 湯蓋邦夫, 梶谷剛

第５３回応用物理学関係連合講演会　2006/03/22
Preparation, Crystal Structure and Thermoelectric Properties of beta-Vanadium Bronzes A_xV₂O₅ International-presentation

Daisuke Abe, Hideaki Sakai, Yuzuru Miyazaki, Tsuyoshi Kajitani

International Symposium on Bio- and Nano-Electronics in Sendai　2006/03/02
Crystal Structure of Na_0.5CoO₂: A Commensurate Misfit-Layered Cobalt Oxide International-presentation

Dai Igarashi, Yuhki Hasegawa, Yuzuru Miyazaki, Kunio Yubuta, Tsuyoshi Kajitani

International Symposium on Bio- and Nano-Electronics in Sendai　2006/03/02
Preparation and thermoelectric properties of ion-exchanged cobalt oxide A_xCoO₂ (A = Ca, Sr) International-presentation

Yuhki Hasegawa, Dai Igarashi, Kunio Yubuta, Yuzuru Miyazaki, Tsuyoshi Kajitani

International Symposium on Bio- and Nano-Electronics in Sendai　2006/03/02
Crystal structure and thermoelectric properties of ion-exchanged A_xCoO₂ (A = Ca, Sr, Ba) International-presentation

The Fourth China International Conference on high-performance ceramics (CICC-4)　2005/10
Sr₄Co₂O₆CO₃: A structure variant of the Ruddlesden-Popper phase“Sr₄Co₃O₁₀” International-presentation

International Conference on Perovskites　2005/09
Thermogravimetric study and high-temperature thermoelectric properties of misfit-layered cobalt oxides [(Ca_1-xSr_x)₂CoO_3-δ]_pCoO₂ with x ≤ 0.20 International-presentation

The 6th Pacific Rim Conference on ceramic and glass technology (PacRim 6)　2005/09
エマージングマテリアル

日本セラミックス協会第 18 回秋季シンポジウム　2005/09
熱電変換

第 52 回応用物理学関係連合講演会　2005/03
Bisumth Substitution Effect on the Structure and Thermoelectric Properties of [Ca₂CoO₃]_0.62CoO₂

The 15th Symposium of the Materials Research Society of Japan (MRS-J)　2004/12
熱電変換

第 65 回応用物理学会学術講演会　2004/09
Preparation and thermoelectric properties of oxygen-deficient misfit layered cobaltite [Ca₂CoO_3-δ]_pCoO₂ International-presentation

23rd International Conference on Thermoelectrics (ICT2004)　2004/07
Preparation and thermoelectric properties of misfit layered sulfides [Ln₂S₂]_pNbS₂ International-presentation

23rd International Conference on Thermoelectrics (ICT2004)　2004/07
熱電変換

第 51 回応用物理学関係連合講演会　2004/03
Crystal Structure and Thermoelectric Properties of the Misfit-layered Cobalt Oxides International-presentation

XVth International Symposium on the Reactivity of Solids (ISRS)　2003/11/09
ミスフィット型コバルト酸化物の結晶構造と熱電特性

第５回層間化学コロキウム　2003/10/31
Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂ International-presentation

22nd International Conference on Thermoelectrics (ICT 2003)　2003/08/17
熱電変換

第 50 回応用物理学関係連合講演会　2003/03
Crystal Chemistry of the Misfit-layered Cobaltites International-presentation

8th Inernational Workshop on Chemical Designing and Processing of Hith-Tc Superconductors and Related materials　2002/11/08
Crystal structure and thermoelectric properties of the composite crystal [(Ca_1-xSr_x)₂CoO₃]_pCoO₂ International-presentation

21st International Conference on Thermoelectrics (ICT 2002)　2002/08/25
熱電変換

第 49 回応用物理学関係連合講演会　2002/03
低次元コバルト酸化物の熱電特性

第５回日本セラミックス協会基礎科学部会セミナー　2001/07/13
層状コバルト酸化物の構造解析と熱電特性

第６１回応用物理学会学術講演会シンポジウム講演　2000/09/03

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Industrial Property Rights 37

熱電材料および熱電材料の製造方法

宮▲崎▼ 讓, 林慶, 湯葢邦夫, 濱田陽紀, 佐藤美嘉

特許第7493817号

Property Type: Patent
熱電変換材料および熱電変換モジュール

黒崎洋輔, 籔内真, 早川純, 宮▲崎▼ 讓, ▲高▼松智寿, 林慶

特許第7384568号

Property Type: Patent
熱電材料および熱電材料の製造方法

宮▲崎▼ 讓, 林慶, 湯葢邦夫, 濱田陽紀, 佐藤美嘉

特許第7121964号

Property Type: Patent
熱電材料および熱電モジュール

飯島喜彦, 宮▲崎▼ ▲譲▼, ▲高▼松智寿, 永井宏樹

特許第6588194号

Property Type: Patent
希土類アルミノボライド熱電半導体、その製造方法及びそれを用いた熱電発電素子

森孝雄, 丸山恵史, 宮崎譲, 梶谷剛, 林慶

特許第6061272号

Property Type: Patent
p型熱電変換材料及びその製造方法、並びに、熱電変換素子及び熱電変換モジュール

菊地将太, 林慶, 宮▲崎▼ ▲譲▼, 梶谷剛

特許第5931413号

Property Type: Patent
カルシウム・コバルト層状酸化物単結晶からなる熱電材料の製造方法

黄向陽, 梶谷剛, 宮崎譲, 湯蓋邦夫

特許第4808099号

Property Type: Patent
熱電変換材料、この材料を用いた熱電変換素子、ならびにこの素子を用いた発電方法および冷却方法

小野泰弘, 稲山伸悟, 宮崎譲, 梶谷剛, 四橋聡史, 足立秀明

特許第3725152号

Property Type: Patent
すべり軸受

辻誠, 成重丈志, 宮崎譲

特許第2805543号

Property Type: Patent
摺動部材

藤沢義和, 成重丈志, 宮崎譲

特許第2519557号

Property Type: Patent
摺動部材

藤沢義和, 成重丈志, 宮崎譲

特許第2519556号

Property Type: Patent
熱電変換材料、この材料を用いた熱電変換素子、ならびにこの素子を用いた発電方法および冷却方法

小野泰弘, 稲山伸悟, 宮崎譲, 梶谷剛, 四橋聡史, 足立秀明

Property Type: Patent
熱電材料および熱電材料の製造方法

齋藤亘, 林慶, 黄志成, 宮▲崎▼ 讓

Property Type: Patent
熱電材料および熱電材料の製造方法

宮▲崎▼ 讓, 林慶, 湯葢邦夫, 濱田陽紀, 佐藤美嘉

Property Type: Patent
熱電材料および熱電モジュール

飯島喜彦, 宮▲崎▼ 讓, ▲高▼松智寿, 中沢駿仁, 島田昌典, 永井宏樹

Property Type: Patent
熱電材料および熱電材料の製造方法

宮▲崎▼ 讓, 林慶, 湯葢邦夫, 濱田陽紀, 佐藤美嘉

Property Type: Patent
熱電材料および熱電モジュール

飯島喜彦, 宮﨑讓, 髙松智寿, 永井宏樹

Property Type: Patent
熱電材料および熱電モジュール

飯島喜彦, 宮▲崎▼ ▲譲▼, ▲高▼松智寿, 永井宏樹

Property Type: Patent
スズ亜鉛シリカリン酸塩系ガラスおよび高温環境用ガラス封止材料

豊原梨恵, 高橋儀宏, 藤原巧, 梶谷剛, 宮崎譲, 林慶, 上野知道, 上野亨, 山田聖

Property Type: Patent
希土類アルミノボライド熱電半導体、その製造方法及びそれを用いた熱電発電素子

森孝雄, 丸山恵史, 宮崎譲, 梶谷剛, 林慶

Property Type: Patent
熱電変換素子

梶谷剛, 宮崎譲, 林慶, 藤原巧, 井原梨恵, 上野知道, 上野亨, 山田聖

Property Type: Patent
スズ亜鉛シリカリン酸塩系ガラスおよび高温環境用ガラス封止材料

豊原梨恵, 藤原巧, 宮﨑讓, 林慶, 上野知道, 上野亨

000000

Property Type: Patent
熱電変換素子

梶谷剛, 宮﨑讓, 林慶, 藤原巧, 上野知道, 上野亨

00000x

Property Type: Patent
熱電材料

杉岡隆弘, 安田修一, 宮崎譲

Property Type: Patent
p型熱電変換材料及びその製造方法、並びに、熱電変換素子及び熱電変換モジュール

菊地将太, 林慶, 宮▲崎▼ ▲譲▼, 梶谷剛

Property Type: Patent
カルシウム・コバルト層状酸化物単結晶からなる熱電材料の製造方法

黄向陽, 梶谷剛, 宮崎譲, 湯蓋邦夫

Property Type: Patent
コバルト系層状複合酸化物および熱電変換素子

本橋輝樹, ゲルマナスペレツキス, マーリットヨハンナカルピネン, 山内尚雄, 小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
熱電変換材料，この材料を用いた熱電変換素子，ならびにこの素子を用いた発電方法および冷却方法

小野泰弘, 稲山伸悟, 宮﨑讓, 梶谷剛, 四橋聡史, 足立秀明

特許第3725152号

Property Type: Patent
酸化物熱電材料

三浦達朗, 宮崎譲, 小野泰弘, 梶谷剛

Property Type: Patent
酸化物熱電材料の製造方法

小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
酸化物熱電材料の製造方法

小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
酸化物熱電材料

小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
酸化物熱電材料

小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
酸化物熱電材料

小野泰弘, 宮崎譲, 梶谷剛

Property Type: Patent
酸化物熱電材料

宮崎譲, 小野泰弘, 梶谷剛

Property Type: Patent
摺動部材

藤沢義和, 成重丈志, 宮崎譲

Property Type: Patent
摺動部材

藤沢義和, 成重丈志, 宮崎譲

Property Type: Patent

Show all Show first 5

Research Projects 19

低熱伝導と高強度を両立する鉄基ハーフホイスラー熱電材料のボンドエンジニアリング

宮崎讓, 林慶

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(A)

Institution: 東北大学

2023/04 - 2027/03
圧力誘起点欠陥を活用した超低熱伝導単結晶熱電材料の創出

林慶, 宮崎讓

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(B)

Institution: 東北大学

2022/04 - 2025/03
The effect of phason strain on the phonon transport properties of incommensurate chimney-ladder compounds

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Institution: Tohoku University

2022/04 - 2024/03
Achieving minimum thermal conductivity in higher manganese silicide-based thermoelectric materials through controlling of incommensurate nano-sized domains

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2020/04/01 - 2023/03/31
階層的構造制御によるチムニーラダー型熱電変換材料の高性能化 Competitive

MIYAZAKI Yuzuru

Offer Organization: NEDO

System: 未利用熱エネルギー革新的活用技術研究開発

2015/08 - 2021/03
Design and Power Generation of Tilted Multilayers via the Transverse Seebeck Effect

MIYAZAKI Yuzuru

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2017/04/01 - 2020/03/31

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In order to fabricate tilted-multilayer-type power modules based on the off-diagonal thermoelectric (ODTE) effect, wherein the electric current flows perpendicular to the temperature gradient, we performed computer simulation and designed several prototype modules. Consequently, we have confirmed the occurrence of the ODTE effect. The output power was proved to depend on the relative thickness of the TE material, as well as the tilted angle of the module and the highest power was demonstrated to occur at around the relative thickness of ~0.1 and the angle of ~30 degree. In the actually fabricated modules, diffusion of constituent elements was confirmed to deteriorate the output power. Nevertheless, the highest output power was higher than that obtained from the conventional pai-type TE modules.
Development of metal/Mg2Si composite materials with high thermoelectric efficiency

HAYASHI Kei

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2017/04/01 - 2020/03/31

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We prepared composite thermoelectric materials consisting of Mg2Si and metal to enhance power factor PF and dimensionless figure-of-merit zT of Mg2Si. As a metal, Mg, Al, and Ni were selected. According to the effective-medium theory, it was predicted that PF and zT are enhanced for all these metals; however, it is valid for the Mg/Mg2Si and Al/Mg2Si composite materials. In the case of Ni, PF and zT decreased by preparing the Ni/Mg2Si composite material. This is due to difference in microstructures and barrier heights at the interface between Mg2Si and metal. The maximum zT value of 0.6 (800 K) was obtained for the Al/Mg2Si composite material by the refinement of the microstructure of the dispersed Al metal phase in Mg2Si, which lead to increase in electrical conductivity and decrease thermal conductivity. This value was higher than an partially Al-substituted Mg2Si materials.
格子間活性サイトエンジニアリングの開拓と熱電発電材料・デバイス開発への応用展開 Competitive

MIYAZAKI Yuzuru

Offer Organization: MEXT

System: 科学研究費補助金

2017/04 - 2019/03
Fabrication of high performance thermoelectric devices using incommensurate chimney ladder compounds Competitive

Miyazaki Yuzuru, HAYASHI Kei, TAKAMATSU Tomohisa

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2013/04/01 - 2016/03/31

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Higher manganese silicide-based chimney-ladder compounds have been prepared and detailed crystal structure of four new phases has been determined. Metallic composition to realize potential thermoelectric (TE) properties has been investigated and the best p-type performance has been achieved for a lightly vanadium-substituted samples. A 3cm x 3cm size TE module has been fabricated and its power generation has been measured under a temperature difference of 400 K. The highest output power of 1.3 W has been recorded, which corresponds to the power density of 1.25 kW/m2.
Fabrication of cooling devices by means of the Thomson effect Competitive

MIYAZAKI Yuzuru, HAYASHI Kei

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Tohoku University

2013/04/01 - 2015/03/31

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Experimental conditions to fabricate solids wherein the carrier concentration consecutively and exponentially changes in order to realize cooling devices utilizing the Thomson effect. Partially Fe-substituted manganese silicides known as degenerated semiconductors have been selected. The amount of Fe-substitution and its distribution were controlled by the spark plasma sintering temperature and duration time. A discernible voltage was detected when the temperature gradient and electric current were applied to the samples. However, it was difficult to separate the contributions of the Seebeck, Peltier and Thomson effects. Besides, a novel phenomenon to generate electric power from no temperature difference has been detected. This effect would useful as a new power generation method from waste heat without cooling parts.
Development of Dimension-Controlled Narrow-gap Semiconductor Devices

KAJITANI Tsuyoshi, FUJIWARA Takumi, MIYAZAKI Yuzuru, HAYASHI Kei, YUBUTA Kunio

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2007 - 2010

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This project was aimed to develop high performance thermoelectric devices which can directly convert the heat flux to the electrical current. Theoretically, it has been expected that the dimensional controlling, namely developing the two-dimensional device, i. e. thin layered devices as well as two-dimensional layered synthetic crystals might exhibit enhanced thermoelectric performance. Recently, one paper showed that high-performance 2D-device ; i. e., being 2. 5 times high relative to the 3D one, was developed. In this project, thin pulsed laser deposition films, vacuum evaporation films and synthetic layered semiconductors were studied.
Crystal Structure and Electronic Transport Properties of Chemically Modified Layered Cobalt Oxides

MIYAZAKI Yuzuru, KAJITANI Tsuyoshi, YUBUTA Kunio

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2006 - 2008
Development of next generation Peltier materials by means of misfit-layered sulfides

MIYAZAKI Yuzuru

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

Category: Grant-in-Aid for Scientific Research (C)

Institution: Tohoku University

2003 - 2005

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We have focused on preparing misfit-layered sulfides [Ln_2S_2]_pTS_2 (Ln:lanthanide ions, T:transition metal ions), in which a large thermoelectric power factor and a low lattice thermal conductivity can be simultaneously realized, to design novel Peltier materials. First of all, a T=Nb system has been explored to prepare new p-type materials. Except for Ln=Eu and Lu, all the lanthanides ions including Y are found to form [Ln_2S_2]_pNbS_2 phases. Three-types of structure with different superspace group are discovered depending on their ionic radii. Larger ions with Ln=La,Ce and Pr form orthorhombic Fm2m(p00)00s, while the samples with Ln=Nd and Sm form Fm2m(p00)000. For smaller ions with Ln=Gd,Tb,Dy,Ho,Er,Tm,Yb and Y, monoclinic F2(p0q) phases are obtained. The sample with Ln=Yb exhibits the highest thermoelectric figure-of-merit Z=3.2 x 10^<-4> K^<-1>, with the Seebeck coefficient S=60μVK^<-1>, resistivity ρ=1.4 mΩcm and κ=0.80 WK^<-1>m^<-1>, at around 300 K, yielding the dimensionless figure-of-merit ZT〜0.1. The Z value still increases with increasing temperature, but the maximum value of Z as well as the highest limit temperature to be utilized are not determined in detail. Next, we have fabricated a thermoelectric pn junction (1 pair) using a Yb-Nb-S compound as a p-type leg and a Sn-Ti-S compound as an n-type leg. The pn uncouple was attached to an Al sheet on its top with silver paste and then was subjected to the Peltier property measurements. At the beginning, a small temperature difference with several kelvin was in fact observed but the difference became small and reached zero with further applying an electric current. This behavior can be ascribed to the fact that the Seebeck coefficient of the both legs was not enough (〜70μVK^<-1>) to keep generating temperature difference because the generated Joule heat easily overcame the temperature difference. Hence, further study is necessary to design sulfide thermoelectric materials which have larger figure-of-merit.
Development of thermoelectric devices based on strongly correlated cobalt compounds

KAJITANI Tsuyoshi, MIYAZAKI Yuzuru, ONO Yasuhiro, GOTOH Takashi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

Category: Grant-in-Aid for Scientific Research (A)

Institution: Tohoku University

2002 - 2005

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□Thermoelectric thin layered samples ; By means of the pulsed laser deposition (PLD) technique, which was realized by the financial aid from JSPS under the present contract, following research results were obtained. 1. Smooth and well oriented La_<0.7>Ca_<0.3>MnO_3, La_<0.4>Sr_<0.6>CoO_3 and SrTiO_3 thin films with the thickness in the range from 5nm to 100nm were successfully grown by the PLD method. 2. Very smooth, e.g., the RMS of the surface roughness was about 0.5nm, thin oxide films were grown by PLD method at the optimized environment gas pressure and substrate temperature. 3. Flat and smooth La_<0.7>Ca_<0.3>MnO_3/La_<0.4>Sr_<0.6>CoO_3 multi-layer sample was grown by the PLD method and Shottky barrier height between two layers was measured. The barrier height was 0.6V, being too high for the thermionic devices. □Following results were obtained for bulk samples ; 1. Many thin plate single crystals of Ca349 were grown by the flux-growth method. Grown single crystals have electrically conducting c-planes parallel to the flat surfaces. These thin plates were carefully aligned parallel to the graphite die bottom and sintered by the spark plasma sintering (SPS) machine controlled at about 900 Celsius degree under the pressure at about 20MPa. Obtained block exhibit high thermoelectric property, i.e., ZT=0.4 at 1000K. 2. Nearly isomorphic thermoelectric bismuth-rhodium and -cobalt oxides were elucidated. Following results have been obtained. Chemical properties of both systems are quite similar. (1)Crystal structure of thermoelectric Bi-(Sr,Ba)-Rh-O was studied by EPMA and TEM. Four or five dimensional structure model was obtained from the determined chemical contents and HREM images. (2)Crystal structure of thermoelectric Bi-(Sr,Ca)-Rh-O was studied by EPMA and TEM. Four or five dimensional structure model was obtained from the determined chemical contents and HREM images. (3)Thermoelectric properties of Ba, Sr or Ca substituted γ-Na_<0.7>CoO_2 samples, which were synthesized by the ion-exchange technique, were studied and their crystal structures were determined by TEM and X-ray diffraction measurement. Most of the crystals were incommensurated CDW phases.
Solid State Chemistry of Thermoelectric Oxides Competitive

System: JST Basic Research Programs (Core Research for Evolutional Science and Technology :CREST)

1999/07 - 2004
Mott絶縁体の光誘起キャリアによる金属・絶縁体転移

社本真一, 梶谷剛, 宮崎譲, 小野泰弘

Offer Organization: 日本学術振興会

System: 科学研究費助成事業特定領域研究(A)

Category: 特定領域研究(A)

Institution: 東北大学

2000 - 2001

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研究室所有のArレーザーが発光しなくなったことから,当初の計画を見直し,EPRや中性子散乱を用いたd^1系モット・ハバード型絶縁体の研究を行いました.例えば,d^1系モット・ハバード型絶縁体であり,パイロクロア構造をとるLu_2V_2O_7の強磁性の起源を,実験から得たパラメーターを用いて明らかにしました.この系は,軌道が完全に反強的に配列するK2CUFなどとは異なり,パイロクロア格子を反映し,軌道が完全には反強的に配列できず,フラストレーションを解消するように,互いに約109度の配列することです.これはまさに2次元3角格子の120度構造に対応した新しい軌道配列パターンと言えます.この構造で強磁性が実現することがわかりました.また京都大学化研高野教授のグループに協力していただき,Lu_2Cr_2O_7の合成を行い,その結晶構造パラメーターを決定し,eg軌道に2個の電子が入ることがわかりました.その他にY_<1-x>Ca_xTiO_3系の粉末試料を広島大学先端研伊賀助教授らにいただき,我々が中心となり,絶対値によるPDF局所構造解析に日本国内で初めて成功しました。さらにx=0.39の試料では体温付近で相分離を起こすことを発見しました.これはセラミックスとしては非常にまれな現象です. その他の成果として,分極関数の特異性を反映して,電子構造と相関してMO_6八面体(M;遷移金属)の傾きの秩序化が生じることを提案しました.これはツインやミクロな混合相の秩序化が電子系の不安定さに起因して起こることを説明します.今までのCDW系とは異なる強い共有結合ネットワーク系における新しい形の電子系と結合した構造歪みを初めて提案したものです.
"Neutron Scattering Study on Photosensitive Magnetic Clusters in Semimagnetic Semiconductors"

KAJITANI Tsuyoshi, MIYAZAKI Yuzuru, ONO Yasuhiro, SHAMOTO Shin-ichi, ITO Tadashi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

Category: Grant-in-Aid for Scientific Research (B)

Institution: TOHOKU UNIVERSITY

1995 - 1997

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Present study was aimed to obtain structural characteristics of optically sennsitive magnetic clusters and its related physical properties of magnetic clusters in the II-VI-type semiconductors deped with magnetic metal atoms. Single crystals of Zn_<1-x>Mn_xTe with x=0.3-0.6 were prepared by the standard Bridgeman method. Structural study on the average lattice was done by means of powder x-ray diffraction measurement in the temperature range from 20K to the ambient. Magnetic susceptibility measurements were performed by means of SQUID manetometer in the range from the ambient to 4.2K.The spin glass temperatures, Tg, were determined accordingly. In the course of the present study, diffuse intensities due to the short range magnetic ordering was found by the powder neutron diffraction measurement below 100K.The magnetic structure-type of the magnetic clusters, which is responsible for the diffuse scatterings, has been determined by means of single crystal neutron diffraction study. The single crystal neutron diffraction measurement was performed in the magnetic field up to 5-Tesla by the use of high resolution neutron diffractometers, HRPD and HERMES installed in the JRR3M reactor hall and the thermal guide hall, respectively. Two dimensional neutron diffraction intensity measurement was performed in the 001 reciprocal plane simultaneously by many neutron counters set in the instruments. Brillouin scattering measurement was tried to study the spin dynamics in the low temperature range. Brillouin scattering measurement, i.e., an optical inelastic scattering measurement, is suitable to measure the excitation levels in the range below 0.5meV with the resolution of 0.01meV.A new Ar-gas laser was purchased with the aid of present financial support and a 5-pass high resolution Fabry-Perot interferrometer was made from an old 3-pass interferrometer, and then a 5-pass Brillouin scattering system was assembled. Brillouin scattering measurement at low temperatures in the magnetic field up to 4000 Oe was successfully performed for the complicated ferromagnetic metallic compound. A part of the magnon dispersion relationship consistent with the neutron scattering data was determined by this instrument. Neutron inelastic scattering measurement has been performed for Zn_<0.6>Mn_<0.4>Te sample using the cold neutron spectrometer AGNES.Critical scattering, associated with the spin glass transition has been observed for the first time in this semimagnetic semiconductor. The critical scattering was observed at temperatures in the vicinity of the spin glass transition temperature, 17K.Photo conductivity has been found also for the first time below 150K in Zn_<0.6>Mn_<0.4>Te sample. The electric AC conductivity has been increased dramaticaly under the laser light with the wave lengths of lambda=6328,5145 and 4880A,respectively. The conductivity was reduced to the original level after the light was darkened, but it took very long, i.e.2000 second at 50K,being above the
有機物と金属水素化物の異常伝導に及ぼす水素のトンネル現象

梶谷剛, 宮崎譲, 小野泰弘, 豊田直樹

Offer Organization: 日本学術振興会

System: 科学研究費助成事業重点領域研究

Category: 重点領域研究

Institution: 東北大学

1996 - 1996

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本研究はBEDT-TTF分子を含む有機導体とPdHx (0<x<1.0)の異常電気伝導を冷中性子散乱測定、x線回折測定、帯磁率測定および電気伝導度測定等によって多角的に研究する事が目的である。本補助金によって実施した主な研究は(1)有機伝導体の帯磁率に関する水素同位体置換効果に関する研究、(2)中性子散乱による超伝導転移とフォノンスペクトルの異常性に関する研究、(3)有機導電体の水素同位体置換による結晶構造変化に関する研究、および(4)水素化物PdHx (0<x<1.0)の冷中性子散乱測定である。研究の(1)と(2)については研究成果の一部を論文として公表した。(3)と(4)の課題については引き続き実験研究を行っており、一部の成果は日本物理学会1997年・年会(名古屋)にて公表する。 BEDT-TTF分子の両端に水素を重水素に置換したものと重水素化したアンモニアを合成したα-(BEDT-TTF)_2 ND_4Hg (SCN)_4と軽水素のみからなる同位体分子の結晶について室温以下の温度領域で帯磁率測定を行った。その結果、50K付近の帯磁率の極大現象に同位体置換効果が著しいことが分かった。即ち、軽水素からなる試料の50K付近の帯磁率は重水素置換体よりも15%程度小さい。超伝導体κ-(BEDT-TTF)_2 Cu (SCN)_2に関して高エネルギー物理学研の中性子分光器LAM-DとLAM-40を用いて2.6Kから18Kまでの温度領域における中性子非弾性散乱強度測定を行い、超伝導転移温度以下の領域で2, 4および8meV付近のエネルギーを持つピークが現れる事を見いだした。また、2meV以下の領域においても、温度低下にともなう強い臨界散乱現象を見た。これらの散乱強度変化は主に超伝導転移に伴う水素の振動モードの温度変化によるものである。日本原子力研究所に設置している冷中性子分光器AGNESを用いて同様の実験を行った所、更に詳しいデータを得た。
電解析出法によるビスマス-テルル系傾斜機能材料の合成

宮崎譲

Offer Organization: 日本学術振興会

System: 科学研究費助成事業重点領域研究

Category: 重点領域研究

Institution: 東北大学

1996 - 1996

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Bi_2Te_3系熱電材料の使用可能な温度域を拡張し、高効率な熱電変換素子を実現させるために、キャリア濃度を傾斜させた材料の開発が期待されている。これまで、バルクについて多くの報告があるものの、薄膜の傾斜機能化に関する報告はなされていない。電解析出(電析)法は、室温近傍で金属相を得ることができ、また電析膜の組成や粒径を容易に制御することが可能な合成法である。さらに、装置が簡単で、任意形状試料の作製が可能などの特徴を有していることから、II-VI族化合物半導体膜の合成にも適用されつつある。Bi_2Te_3膜についても最近になって合成に関する報告がなされたが、電析膜の組成に最も大きく影響する析出電位と生成膜の組成や物性値の関係については調べられていない。本研究では、キャリア濃度(組成)が連続的に変化したBi_2Te_3系傾斜機能膜を作製するための基礎データを得ることを目的とし、BiおよびTeイオンを含む硝酸水溶液中で電流-電位曲線を作製して、Bi_2Te_3膜の得られる電位範囲を明らかにすることを試みた。続いて、その析出電位範囲内で、電位と得られた膜の組成、格子定数の関係を調べるとともに、膜のゼ-ベック係数を測定した。ポテンショスタットを用いてTi電極上に3電極方式で電析を行ったところ、-0.25〜+0.08V vs Ag・AgClにおいてBi_2Te_3の単相膜が得られた。析出電位の減少とともにBi_2Te_3のa軸長が増加し、逆にc軸長は減少する傾向が見られたことから、析出電位を変化させるにより膜の組成を制御できることが明らかになった。+0.02Vを境にこれより貴な電位ではn型膜が、卑な電位域ではp型膜が生成した。これまでのところ、物性測定が可能な緻密な膜は+0.02V近傍で合成された低キャリア濃度のものに限られており、ゼ-ベック係数の最高値は+0.04Vで作製された膜の-63.4μVK^<-1>(300K)である。

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Social Activities 10

熱電効果を応用した発電材料の研究

２学年分野別進路講演会

2018/06/20 - 2018/06/20
八木・宇田アンテナ発明100周年記念フォーラム

2024/04/14 -
マンガンケイ化物系熱電変換材料で従来比約２倍の出力因子を実現

2017/12/01 -

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NEDOと東北大学の共同プレスリリース
出前授業

2016/06/17 -

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並木中等学校（茨城県つくば市）への出前授業
講演会

2014/09/24 -

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マレーシアマラヤ大学での「熱電変換技術」の紹介
講演会

2014/08/07 -

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秋田熱電材料研究会での「熱電変換技術」の紹介
出前授業

2014/05 -

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仙台高専の生徒に対する「熱電変換技術」の紹介
模擬授業

2014/04 -

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福島県立福島東高校の生徒に対する「熱電変換技術」の紹介
講演会

2013/08/05 -

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同和鉱業での「熱電変換技術」の紹介
東北大学イノベーションフェア2013

2013/01/17 -

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高温領域対応の多積層熱電半導体デバイス

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Media Coverage 1

排熱から電気変換効率40倍

2012/05/21

Type: Newspaper, magazine

Other 18

熱電材料の開発

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熱電材料の開発を行う
階層的構造制御によるチムニーラダー型熱電変換材料の高性能化

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階層的構造制御によるチムニーラダー型熱電変換材料の高性能化を行う
熱電材料の研究

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熱電材料の研究
新型二次電池の研究

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新型二次電池の研究
固相プロセスによるマンガンケイ化物系高効率熱伝変換材料の創製

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固相プロセスによるマンガンケイ化物系高効率熱伝変換材料の創製
スクッテルダイト型熱電材料の開発

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スクッテルダイト型熱電材料の開発を行う
精密構造解析と電子構造計算に基づいたMnSi_g系化合物の合成と熱電特性

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精密構造解析と電子構造計算に基づいてMnSi_g系化合物を合成し、その熱電特性を明らかにする。
固相イオン交換法を用いた次世代マグネシウムイオン電池正極材料の開発

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安全で汎用性に富む次世代２次電池正極材料の創製を目的として、正スピネル構造を有するマグネシウム鉄酸化物を合成し、その組成及び結晶構造と電気化学的特性の関連を明らかにする。
遷移金属ケイ化物を用いた次世代熱電材料の研究

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本研究は、自動車エンジン等から排出される中高温域（300-700℃）の廃熱を電力に変換する熱電変換材料として、無毒かつ安価な元素から構成される遷移金属ケイ化物（FeSi2 および MnSi2-x）系に注目し、以下の２点を重点的に推進することを目的とする。１）元素置換による組成および電子構造の最適化を行うことによって、実用レベルの熱電変換材料を創製する。２）最適化された熱電変換材料を用いて、発電モジュールの試作および発電特性評価を行う。
電子内部自由度制御型ナノデバイス創製原理の構築

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電子内部自由度制御型ナノデバイス創製原理の構築
化学修飾された層状コバルト酸化物の結晶構造と輸送特性に関する研究

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化学修飾により種々の層状コバルト酸化物を合成し、その結晶構造と輸送特性の相関を詳細に調べる研究
Ｘ線光電子分光による層状コバルト酸化物の研究

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新たに合成された層状コバルト酸化物に対して、Ｘ線光電子分光を用いてコバルトイオンの電子状態を詳細に研究する。
ナノブロックインテグレーションによる層状酸化物熱電材料の創製

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ナノブロックインテグレーションによる層状酸化物熱電材料の創製
ミュオンスピン緩和を用いた層状コバルト酸化物のスピンダイナミクスに関する研究

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新たに合成された種々の層状コバルト酸化物のスピンダイナミクスをミュオンスピン緩和法を用いて詳細に研究する。
層状コバルト酸化物の結晶化学に関する研究

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新規層状コバルト酸化物を探索し、その結晶構造と物性の相関を詳細に調べる研究
コバルト酸化物複合結晶の熱電特性

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コバルト酸化物複合結晶の熱電特性
ミスフィット型複合結晶酸化物の結晶構造解析

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新規ミスフィット型複合結晶酸化物の結晶構造を粉末中性子回折法を用いて詳細に解析する研究
MO-CVD 法による YMnO3 強誘電体薄膜の作製と評価

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MO-CVD 法による YMnO3 強誘電体薄膜の作製と評価

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