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Takuya Taniguchi

Section

Institute of Multidisciplinary Research for Advanced Materials

Job title

Assistant Professor

researchmap

https://researchmap.jp/tanigu_nthjpndtl

J-GLOBAL ID

202301002835473547

ORCID

https://orcid.org/0000-0001-9865-1351

Research History 3

2023/04 - Present

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Assistant professor
2020/04 - 2023/03

Technical University of Munich　Department of Physics　Postdoc
2018/04 - 2020/03

Technical University of Munich　JSPS Overseas research fellowships

Education 3

Kyoto University　Graduate School of Science　Division of Chemistry

2015/04 - 2018/03
Kyoto University　Graduate School of Science　Division of Chemistry

2013/04 - 2015/03
The University of Osaka　School of Science

2009/04 - 2013/03

Committee Memberships 3

日本磁気学会バルク軟磁性材料専門研究会　代表世話人

2025/05 - Present
日本磁気学会　企画委員会

2025/05 - Present
Intermag2027　Program Committee

2026/07 -

Professional Memberships 4

日本応用物理学会

2024/06 - Present
日本磁気学会

2023/04 - Present
日本物理学会

2013/12 - Present
Deutsche Physikalische Gesellschaft e. V. (German Physical Society)

2021/09 - 2024/12

Research Interests 7

マイクロマグネティックシミュレーション
磁気光学効果
高周波計測
鉄損
スピン波
磁壁移動現象
スピントロニクス

Research Areas 2

Natural sciences / Magnetism, superconductivity, and strongly correlated systems /
Nanotechnology/Materials / Applied materials /

Awards 6

令和六年度トーキン科学技術振興財団トーキン財団奨励賞

2025/03　公益財団法人トーキン科学技術振興財団　磁性ナノ薄膜における熱活性磁化反転現象の研究
Best Poster Award

2024/05　The MORIS2024 Organizing Committee　Observation of the Magnon Hall Effect of Magnetostatic Forward Volume Spin Waves
Research encourage award

2024/03　Time-resolved observation of spin-orbit torque induced magnetization switching and exchange bias switching
Hatano scholarship fund, the 18th IMRAM research encourage award

2023/12　IMRAM, Tohoku Univeristy
大学院生研究発表会オーラル賞

2018/03　京都大学化学研究所
Division 3, Student Encouragement Award

2015/11　The Physical Society of Japan

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Papers 37

Non-destructive three-dimensional orientation mapping of Nd–Fe–B permanent magnets

Jaemyung Kim, Yujiro Hayashi, Tomomi Suwa, Akiyama Yusuke, Takuya Taniguchi, Kousuke Katou, Kaiki Takemura, Satoshi Okamoto, Motohiro Suzuki, Makina Yabashi

Materials & Design　269　116671-116671　2026/09
Publisher: Elsevier BV
DOI： 10.1016/j.matdes.2026.116671 　

ISSN： 0264-1275
Cross terms of harmonics in iron loss of Sendust toroidal dust core under multi-frequency magnetic fields Peer-reviewed

Takuya Taniguchi, Yuji Uehara, Nobuhisa Ono, Hiroshi Tsukahara, Yuki Sato, Satoshi Okamoto

Journal of Magnetism and Magnetic Materials　656　174525　2026/08
Publisher: Elsevier BV
DOI： 10.1016/j.jmmm.2026.174525 　
Computable Knowledge Discovery in Soft Magnetic Materials via Large Language Model Driven Literature Meta-Analysis

Ruixuan Ying, Yunhao Liang, Takuya Taniguchi, Yifan Song, Zhenyu Long, Satoshi Okamoto

IEEE Transactions on Magnetics　1-1　2026/06
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
DOI： 10.1109/tmag.2026.3700131 　

ISSN： 0018-9464

eISSN： 1941-0069
Practical Loss Estimation of Power Inductors Under Non-Sinusoidal Excitation Based on Sinusoidal Measurements

Yuki Sato, Yuji Uehara, Takuya Taniguchi, Satoshi Okamoto

IEEE Access　14　106521-106529　2026
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
DOI： 10.1109/access.2026.3712296 　

eISSN： 2169-3536
Spin wave propagation in a ring-shaped magnonic waveguide

Franz Vilsmeier, Takuya Taniguchi, Michael Lindner, Christian Riedel, Christian Back

Applied Physics Letters　127　(16)　162405　2025/10/20
Publisher: AIP Publishing
DOI： 10.1063/5.0287832 　

ISSN： 0003-6951

eISSN： 1077-3118

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We experimentally investigate frequency-selective spin wave (SW) transmission in a micrometer-scale, ring-shaped magnonic resonator integrated with a linear yttrium iron garnet stripe. Using super-Nyquist-sampling magneto-optical Kerr effect (SNS-MOKE) microscopyand micro-focused Brillouin light scattering (μ-BLS), we probe SW dynamics in the dipolar regime under in-plane magnetization. Spatially resolved measurements reveal a sharp transmission peak at 3.92 GHz for an external field of 74 mT, demonstrating strong frequency selectivity. This behavior arises from interference and scattering among multiple SW modes in the ring, shaped by anisotropic dispersion, geometric confinement, and local magnetic field inhomogeneities. Caustic-like propagation further limits outcoupling due to fixed group velocity directions. Fourier analysis reveals discrete wavevector components consistent with quantized ring eigenmodes. μ-BLS measurements at 70 mT show a shift of the transmission peak, demonstrating tunability via the external magnetic field.
RECODE: Leveraging Reliable Self-generated Tests and Fine-Grained Execution Feedback to Enhance LLM-Based Code Generation Peer-reviewed

Yunhao Liang, Ruixuan Ying, Takuya Taniguchi, Chengguang Gan, Zhe Cui

2025/07

DOI： 10.1007/978-981-95-0014-7_43 　
Clustering First-order reversal curve diagram using the Gaussian mixture model and the Davies–Bouldin index

Ruixuan Ying, Takuya Taniguchi, Koki Nabeta, Keisuke Ishigami, Nobuaki Kikuchi, Satoshi Okamoto

Japanese Journal of Applied Physics　63　(11)　11SP04-11SP04　2024/11/01
Publisher: IOP Publishing
DOI： 10.35848/1347-4065/ad892d 　

ISSN： 0021-4922

eISSN： 1347-4065

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Abstract In our energy-consuming society, understanding magnetization reversal in permanent magnets is crucial for improving energy conversion efficiency between electric energy and mechanical energy. First-order reversal curves (FORCs) have enabled qualitative studies of reversal mechanisms, however, further understanding based on quantitative analysis is still difficult due to the complexity of FORC diagrams. We introduce a machine-learning-based approach combining the Gaussian mixture model and the Davies–Bouldin index to separate characteristic features in FORC diagrams of Nd-Fe-B magnets. The clustering method is evaluated using several FORC diagrams obtained at different temperatures, and we also demonstrated hysteresis loop reconstruction using the clustered FORC diagrams.
Multimodal iron loss analyses based on magnetization processes for various soft magnetic toroidal cores

Nobuhisa Ono, Yuji Uehara, Tomoyuki Onuma, Takuya Taniguchi, Nobuaki Kikuchi, Satoshi Okamoto

Journal of Magnetism and Magnetic Materials　603　172222-172222　2024/08
Publisher: Elsevier BV
DOI： 10.1016/j.jmmm.2024.172222 　

ISSN： 0304-8853
Width-mode order dependent spin wave conversion in an in-plane magnetized microscale T-shaped YIG magnonic splitter

Takuya Taniguchi, Jan Sahliger, Franz Vilsmeier, Christian H. Back

Journal of Applied Physics　135　(23)　233901　2024/06/18
Publisher: AIP Publishing
DOI： 10.1063/5.0218351 　

ISSN： 0021-8979

eISSN： 1089-7550
Caustic spin wave beams in soft thin films: Properties and classification

Wartelle, A., Vilsmeier, F., Taniguchi, T., Back, C.H.

Physical Review B　107　(14)　2023/04/28

DOI： 10.1103/PhysRevB.107.144431 　

ISSN： 2469-9950 2469-9969
Hybridization‐Induced Spin‐Wave Transmission Stop Band within a 1D Diffraction Grating

C. Riedel, T. Taniguchi, L. Körber, A. Kákay, C. H. Back

Advanced Physics Research　2　(7)　2023/02/20
Publisher: Wiley
DOI： 10.1002/apxr.202200104 　

ISSN： 2751-1200

eISSN： 2751-1200

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Abstract Spin wave propagation is studied through a diffraction grating in a 200 nm thick YIG film by using scanning time resolved magneto‐optic Kerr microscopy (TR‐MOKE) and supported by micromagnetic simulations. Caustic‐like spin wave emission and the hybridization of Damon Eshbach (DE) type spin wave modes within the grating region, depending on the magnetic field and the dimensions of the grating, are observed. Hybridization leads to an increased attenuation length for propagating spin waves and consequently to a transmission stop‐band for spin waves at the grating for a certain magnetic field range.
Time-resolved detection of spin–orbit torque switching of magnetization and exchange bias Peer-reviewed

Yuyan Wang, Takuya Taniguchi, Po-Hung Lin, Daniel Zicchino, Andreas Nickl, Jan Sahliger, Chih-Huang Lai, Cheng Song, Huaqiang Wu, Qionghai Dai, Christian H. Back

Nature Electronics　5　(12)　840-848　2022/11/28
Publisher: Springer Science and Business Media LLC
DOI： 10.1038/s41928-022-00870-3 　

eISSN： 2520-1131
Advances in Magnetics Roadmap on Spin-Wave Computing Peer-reviewed

A. V. Chumak, P. Kabos, M. Wu, C. Abert, C. Adelmann, A. O. Adeyeye, J. Akerman, F. G. Aliev, A. Anane, A. Awad, C. H. Back, A. Barman, G. E. W. Bauer, M. Becherer, E. N. Beginin, V. A. S. V. Bittencourt, Y. M. Blanter, P. Bortolotti, I. Boventer, D. A. Bozhko, S. A. Bunyaev, J. J. Carmiggelt, R. R. Cheenikundil, F. Ciubotaru, S. Cotofana, G. Csaba, O. V. Dobrovolskiy, C. Dubs, M. Elyasi, K. G. Fripp, H. Fulara, I. A. Golovchanskiy, C. Gonzalez-Ballestero, P. Graczyk, D. Grundler, P. Gruszecki, G. Gubbiotti, K. Guslienko, A. Haldar, S. Hamdioui, R. Hertel, B. Hillebrands, T. Hioki, A. Houshang, C.-M. Hu, H. Huebl, M. Huth, E. Iacocca, M. B. Jungfleisch, G. N. Kakazei, A. Khitun, R. Khymyn, T. Kikkawa, M. Klaui, O. Klein, J. W. Klos, S. Knauer, S. Koraltan, M. Kostylev, M. Krawczyk, I. N. Krivorotov, V. V. Kruglyak, D. Lachance-Quirion, S. Ladak, R. Lebrun, Y. Li, M. Lindner, R. Macedo, S. Mayr, G. A. Melkov, S. Mieszczak, Y. Nakamura, H. T. Nembach, A. A. Nikitin, S. A. Nikitov, V. Novosad, J. A. Otalora, Y. Otani, A. Papp, B. Pigeau, P. Pirro, W. Porod, F. Porrati, H. Qin, B. Rana, T. Reimann, F. Riente, O. Romero-Isart, A. Ross, A. V. Sadovnikov, A. R. Safin, E. Saitoh, G. Schmidt, H. Schultheiss, K. Schultheiss, A. A. Serga, S. Sharma, J. M. Shaw, D. Suess, O. Surzhenko, K. Szulc, T. Taniguchi, M. Urbanek, K. Usami, A. B. Ustinov, T. van der Sar, S. van Dijken, V. I. Vasyuchka, R. Verba, S. Viola Kusminskiy, Q. Wang, M. Weides, M. Weiler, S. Wintz, S. P. Wolski, X. Zhang

IEEE Transactions on Magnetics　58　(6)　1-72　2022/06
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
DOI： 10.1109/tmag.2022.3149664 　

ISSN： 0018-9464

eISSN： 1941-0069
Mode selective excitation of spin waves

Taniguchi, T., Back, C.H.

Applied Physics Letters　120　(3)　032402-032402　2022/01/17
Publisher: AIP Publishing LLC
DOI： 10.1063/5.0080716 　

ISSN： 0003-6951
Microwave Spectroscopy of the Low-Temperature Skyrmion State in Cu2OSeO3

Aqeel, A., Sahliger, J., Taniguchi, T., M{\"a}ndl, S., Mettus, D., Berger, H., Bauer, A., Garst, M., Pfleiderer, C., Back, C.H.

Physical Review Letters　126　(1)　017202-017202　2021
Publisher: American Physical Society
DOI： 10.1103/PhysRevLett.126.017202 　

ISSN： 0031-9007 1079-7114
Observation of domain wall segment jump among disorders

Taniguchi, T., Koyama, T., Kim, K.-H., Chiba, D., Kim, K.-J., Ono, T.

Journal of Magnetism and Magnetic Materials　511　166999-166999　2020
Publisher: North-Holland
DOI： 10.1016/j.jmmm.2020.166999 　

ISSN： 0304-8853
Chromatic aberration effect in refraction of spin waves

Li, T., Taniguchi, T., Shiota, Y., Moriyama, T., Ono, T.

Journal of the Magnetics Society of Japan　44　(6)　2020
Publisher: The Magnetics Society of Japan
DOI： 10.3379/msjmag.2011L003 　

ISSN： 0285-0192 1882-2932
Nano-plate biosensor array using ultrafast heat transport through proteins

Ogi, H., Iwagami, S., Nagakubo, A., Taniguchi, T., Ono, T.

Sensors and Actuators B Chemical　278　15-20　2019
Publisher: Elsevier
DOI： 10.1016/j.snb.2018.09.030 　

ISSN： 0925-4005
Perpendicular magnetic anisotropy and tunneling conductivity of epitaxial cobalt-ferrite (0 0 1) films grown on nonmagnetic metal films

Naruse, K., Tanaka, M., Nomura, K., Taniguchi, T., Honda, S., Ono, T., Mibu, K.

Journal of Magnetism and Magnetic Materials　475　721-726　2019
Publisher: North-Holland
DOI： 10.1016/j.jmmm.2018.12.025 　

ISSN： 0304-8853
Spin-wave wavelength down-conversion at thickness steps

Stigloher, J., Taniguchi, T., Madami, M., Decker, M., K{\"o}rner, H.S., Moriyama, T., Gubbiotti, G., Ono, T., Back, C.H.

Applied Physics Express　11　(5)　053002-053002　2018
Publisher: IOP Publishing
DOI： 10.7567/APEX.11.053002 　

ISSN： 1882-0778 1882-0786
Three-dimensional visualization of magnetic domain structure with strong uniaxial anisotropy via scanning hard X-ray microtomography

Suzuki, Motohiro, Kim, Kab-Jin, Kim, Sanghoon, Yoshikawa, Hiroki, Tono, Takayuki, Yamada, Kihiro T, Taniguchi, Takuya, Mizuno, Hayato, Oda, Kent, Ishibashi, Mio, others

Applied Physics Express　11　(3)　036601-036601　2018
Publisher: IOP Publishing
DOI： 10.7567/apex.11.036601 　 10.1063/5.0058201_references_DOI_MO43WWBSlH0t91dOKfeWTfd29Y7 　 10.1002/tcr.201800123_references_DOI_HSMOojaF0sJz85bBhhu6mZ69ATS 　 10.1038/s41563-021-01141-w_references_DOI_HSMOojaF0sJz85bBhhu6mZ69ATS 　 10.1103/physrevb.103.054421_references_DOI_HSMOojaF0sJz85bBhhu6mZ69ATS 　 10.1080/08940886.2020.1725795_references_DOI_HSMOojaF0sJz85bBhhu6mZ69ATS 　

ISSN： 1882-0778

eISSN： 1882-0786

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An X-ray tomographic technique was developed to investigate the internal magnetic domain structure in a micrometer-sized ferromagnetic sample. The technique is based on a scanning hard X-ray nanoprobe using X-ray magnetic circular dichroism (XMCD). From transmission XMCD images at the Gd L3 edge as a function of the sample rotation angle, the three-dimensional (3D) distribution of a single component of the magnetic vector in a GdFeCo microdisc was reconstructed with a spatial resolution of 360 nm, using a modified algebraic reconstruction algorithm. The method is applicable to practical magnetic materials and can be extended to 3D visualization of the magnetic domain formation process under external magnetic fields.
Microscopic Investigation into the Electric Field Effect on Proximity-Induced Magnetism in Pt

Yamada, K.T., Suzuki, M., Pradipto, A.-M., Koyama, T., Kim, S., Kim, K.-J., Ono, S., Taniguchi, T., Mizuno, H., Ando, F., Oda, K., Kakizakai, H., Moriyama, T., Nakamura, K., Chiba, D., Ono, T.

Physical Review Letters　120　(15)　157203-157203　2018
Publisher: American Physical Society
DOI： 10.1103/PhysRevLett.120.157203 　

ISSN： 0031-9007 1079-7114
Observation of a Goos-Hänchen-like Phase Shift for Magnetostatic Spin Waves

Stigloher, J., Taniguchi, T., K{\"o}rner, H.S., Decker, M., Moriyama, T., Ono, T., Back, C.H.

Physical Review Letters　121　(13)　137201-137201　2018
Publisher: American Physical Society
DOI： 10.1103/PhysRevLett.121.137201 　

ISSN： 0031-9007 1079-7114
Contributions of Co and Fe orbitals to perpendicular magnetic anisotropy of MgO/CoFeB bilayers with Ta, W, IrMn, and Ti underlayers

Kim, S., Baek, S.C., Ishibashi, M., Yamada, K., Taniguchi, T., Okuno, T., Kotani, Y., Nakamura, T., Kim, K.-J., Moriyama, T., Park, B.-G., Ono, T.

Applied Physics Express　10　(7)　073006-073006　2017
Publisher: IOP Publishing
DOI： 10.7567/APEX.10.073006 　

ISSN： 1882-0778 1882-0786
Magnetic droplet nucleation with a homochiral Néel domain wall

Kim, S., Jang, P.-H., Kim, D.-H., Ishibashi, M., Taniguchi, T., Moriyama, T., Kim, K.-J., Lee, K.-J., Ono, T.

Physical Review B　95　(22)　220402-220402　2017
Publisher: APS
DOI： 10.1103/PhysRevB.95.220402 　

ISSN： 2469-9950 2469-9969
Soliton-like magnetic domain wall motion induced by the interfacial Dzyaloshinskii-Moriya interaction Peer-reviewed

Yoko Yoshimura, Kab-Jin Kim, Takuya Taniguchi, Takayuki Tono, Kohei Ueda, Ryo Hiramatsu, Takahiro Moriyama, Keisuke Yamada, Yoshinobu Nakatani, Teruo Ono

NATURE PHYSICS　12　(2)　157-+　2016/02

DOI： 10.1038/NPHYS3535 　

ISSN： 1745-2473

eISSN： 1745-2481
Temperature dependence of spin Hall magnetoresistance in W/CoFeB bilayer

Okuno, T., Taniguchi, T., Kim, S., d Baek, S.-H.C., Park, B.-G., Moriyama, T., Kim, K.-J., Ono, T.

Japanese Journal of Applied Physics　55　(8)　080308-080308　2016
Publisher: IOP Publishing
DOI： 10.7567/JJAP.55.080308 　

ISSN： 0021-4922 1347-4065
Snell's Law for Spin Waves

Stigloher, J., Decker, M., K{\"o}rner, H.S., Tanabe, K., Moriyama, T., Taniguchi, T., Hata, H., Madami, M., Gubbiotti, G., Kobayashi, K., Ono, T., Back, C.H.

Physical Review Letters　117　(3)　037204-037204　2016
Publisher: APS
DOI： 10.1103/PhysRevLett.117.037204 　

ISSN： 0031-9007 1079-7114
Interfacial Dzyaloshinskii-Moriya interaction studied by time-resolved scanning Kerr microscopy

K{\"o}rner, H.S., Stigloher, J., Bauer, H.G., Hata, H., Taniguchi, T., Moriyama, T., Ono, T., Back, C.H.

Physical Review B Condensed Matter and Materials Physics　92　(22)　220413-220413　2015
Publisher: APS
DOI： 10.1103/PhysRevB.92.220413 　

ISSN： 1098-0121 1550-235X
Localized precessional mode of domain wall controlled by magnetic field and dc current

Hiramatsu, R., Kim, K.-J., Taniguchi, T., Tono, T., Moriyama, T., Fukami, S., Yamanouchi, M., Ohno, H., Nakatani, Y., Ono, T.

Applied Physics Express　8　(2)　023003-023003　2015
Publisher: IOP Publishing
DOI： 10.7567/APEX.8.023003 　

ISSN： 1882-0778 1882-0786
Dimensional crossover characterized by distribution of magnetic domain wall creep velocity

Taniguchi, T., Kim, K.-J., Tono, T., Kim, S., Moriyama, T., Ono, T.

Applied Physics Express　8　(7)　073004-073004　2015
Publisher: IOP Publishing
DOI： 10.7567/APEX.8.073004 　

ISSN： 1882-0778 1882-0786
Temperature dependence of current-induced magnetic domain wall motion in an asymmetric Co/Ni nanowire

Ueda, K., Hiramatsu, R., Kim, K.-J., Taniguchi, T., Tono, T., Moriyama, T., Ono, T.

Japanese Journal of Applied Physics　54　(3)　038004-038004　2015
Publisher: IOP Publishing
DOI： 10.7567/JJAP.54.038004 　

ISSN： 0021-4922 1347-4065
Precise control of magnetic domain wall displacement by a nanosecond current pulse in Co/Ni nanowires

Taniguchi, T., Kim, K.-J., Tono, T., Moriyama, T., Nakatani, Y., Ono, T.

Applied Physics Express　8　(7)　073008-073008　2015
Publisher: IOP Publishing
DOI： 10.7567/APEX.8.073008 　

ISSN： 1882-0778 1882-0786
In-plane field-driven crossover in the spin-torque mechanism acting on magnetic domain walls in Co/Ni

Ueda, K., Kim, K.-J., Taniguchi, T., Tono, T., Moriyama, T., Ono, T.

Physical Review B Condensed Matter and Materials Physics　91　(6)　060405-060405　2015
Publisher: APS
DOI： 10.1103/PhysRevB.91.060405 　

ISSN： 1098-0121 1550-235X
Chiral magnetic domain wall in ferrimagnetic GdFeCo wires

Tono, T., Taniguchi, T., Kim, K.-J., Moriyama, T., Tsukamoto, A., Ono, T.

Applied Physics Express　8　(7)　073001-073001　2015
Publisher: IOP Publishing
DOI： 10.7567/APEX.8.073001 　

ISSN： 1882-0778 1882-0786
Spin-wave-induced domain wall motion in perpendicularly magnetized system Peer-reviewed

Hiroshi Hata, Takuya Taniguchi, Hyun-Woo Lee, Takahiro Moriyama, Teruo Ono

Applied Physics Express　7　(3)　033001-033001　2014/02/05
Publisher: IOP Publishing
DOI： 10.7567/apex.7.033001 　

ISSN： 1882-0778

eISSN： 1882-0786
Different stochastic behaviors for magnetic field and current in domain wall creep motion

Taniguchi, T., Kim, K.-J., Yoshimura, Y., Moriyama, T., Tanigawa, H., Suzuki, T., Kariyada, E., Ono, T.

Applied Physics Express　7　(5)　053005-053005　2014
Publisher: IOP Publishing
DOI： 10.7567/APEX.7.053005 　

ISSN： 1882-0778 1882-0786

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Misc. 5

軟磁性材料の高周波損失に関する研究の現状と課題

岡本聡, 小野暢久, 谷口卓也, 塚原宙, 鈴木清策

固体物理　60　(6)　13-22　2025/06
軟磁性圧粉コアの高精度鉄損測定と鉄損解析

岡本聡, 小野暢久, 谷口卓也, 佐藤祐樹, 上原裕二

まぐね　19　(5)　207-212　2024
Spin-wave mode conversion using T-shaped magnonic splitter

Takuya Taniguchi, Jan Sahliger, Christian Back

2023　(83-86・88-91)　2023/11
Time-resolved observation of spin-orbit torque induced magnetization switching and exchange bias switching

Takuya Taniguchi, Yuyan Wang, Po-Hung Lin, Daniel Zicchino, Andreas Nickl, Jan Sahliger Chih-Huang Lai, Cheng Song, Huaqiang Wu, Wionghai Dai, Christian Back

69-74　2023/08
Spin wave mode conversion in an in-plane magnetized microscale T-shaped YIG magnonic splitter

Takuya Taniguchi, Jan Sahliger, Christian H. Back

arXiv　2023/08

DOI： 10.48550/arXiv.2308.14327

Presentations 21

Effect of magnetic viscosity on iron loss under triangular-wave excitation

T. Taniguchi, Y. Uehara, S. Okamoto

Magnetic Materials and Devices for Mobility, Power Electronics, and Energy Conversion　2026/09/10
Cross Terms of Iron Loss Harmonics under Multi-frequency Excitation Invited

Takuya Taniguchi

International Symposium on Advanced Magnetic Materials　2026/07/01
Cross terms of iron loss under multi-frequency excitation Invited

Takuya Taniguchi

KMS Winter Conference　2025/11/26
Cross terms of iron loss harmonics under multi-frequency magnetic fields Invited

Takuya Taniguchi

International Symposium on Soft Magnetic Materials　2025/09/30
Cross terms of harmonics in iron loss under multi-frequency magnetic field excitation

Takuya Taniguchi, Yuji Uehara, Nobuhisa Ono, Hiroshi Tsukahara, Yuki Sato, Satoshi Okamoto

The 49th Annual Conference on MAGNETICS in Japan　2025/09/18
Observation of spatial asymmetry in magnetostatic forward volume spin waves propagation

Takuya Taniguchi, Christian Riedel, Franz Vilsmeier, Satoshi Okamoto, Christian H. Back

Trends in Magnetism2025　2025/09/01
Observation of the magnon Hall effect of magnetostatic forward volume waves Invited

Takuya Taniguchi

SpinX 2024　2024/12/10
Towards fundamental understanding of iron loss in soft magnets Invited

Takuya Taniguchi

Tohoku University & National Taipei University of Technology Joint Symposium　2024/11/26
Sinc波電流を用いた広帯域鉄損測定の取り組み

谷口卓也, 上原裕二, 佐藤佑樹, 小野暢久, 塚原宙, 岡本聡

電気学会マグネティックス研究会　2024/11/22
Sincパルスを用いた広帯域鉄損機構の調査

谷口卓也, 上原裕二, 佐藤佑樹, 小野暢久, 塚原宙, 岡本聡

日本磁気学会　2024/09/27
静磁モードスピン波におけるマグノンホール効果の観測

谷口卓也, Riedel Christian, Franz Vilsmeier, 岡本聡, Christian Back

日本応用物理学会　2024/09/16
静磁モードスピン波におけるマグノンホール効果の観測 Invited

谷口卓也

電気学会マグネティックス研究会光・熱・電気と磁気の相互作用の活用技術調査専門委員会　2024/07/05
磁化過程に基づく鉄損要因解析と統計モデルの比較

小野暢久, 上原裕二, 大沼智幸, 谷口卓也, 菊池伸明, 岡本聡

日本金属学会2024年春期講演大会　2024/03/14
混合ガウスモデルとベイズ情報量規準を用いたFORCダイアグラムのクラスタリング

応瑞軒, 谷口卓也, 鍋田滉希, 石上啓介, 菊池伸明, 岡本聡

日本金属学会2024年春期講演大会　2024/03/15
静磁モードスピン波におけるマグノンホール効果観測の試み

谷口卓也

2023年度物質・デバイス領域共同研究拠点展開共同研究研究会　2024/02/27
3D Visualization of the Magnetic Domain Structure Inside Advanced Permanent Magnets using X-ray Magnetic Tomography International-presentation Invited

Satoshi Okamoto, Tomomi Suwa, Keisuke Ishigami, Takuya Taniguchi, Motohiro Suzuki

MRM2023/IUMRS-ICA2023　2023/12/15
Observation of exchange bias switching using time-resolved magneto-optical Kerr effect microscopy Invited

Takuya Taniguchi, Yuyan Wang, Po-Hung Lin, Daniel Zicchino, Andreas Nickl, Jan Sahliger, Chih-Huang Lai, Cheng Song, Huaqiang Wu, Qionghai Dai, Christian Back

2023/09/27
Time-resolved observation of spin-orbit torque induced magnetization switching and exchange bias switching

Takuya Taniguchi, Yuyan Wang, Po-Hung Lin, Daniel Zicchino, Andreas Nickl, Jan Sahliger, Chih-Huang Lai, Cheng Song, Huaqiang Wu, Qionghai Dai, Christian Back

2023/08/09
Ring-shaped multi-bandpass spin wave filter using YIG film International-presentation

Takuya Taniguchi, Michael Lindner, Christian Riedel, Christian H. Back

Intermag 2023　2023/05/18
Mode selective excitation of spin-waves utilizing spin-wave conversion

T. Taniguchi, C. H. Back

Joint European Magnetic Symposia　2022/07/26
Mode selective excitation of spin-waves

T. Taniguchi, C. H. Back

15th Joint MMM-Intermag　2022/01

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Industrial Property Rights 2

軟磁性材料の製造方法及び軟磁性材料

塚原宙, 小野暢久, 谷口卓也, 岡本聡

Property Type: Patent
鉄損測定方法及び鉄損測定装置

谷口卓也, 上原裕二, 岡本聡, 小野暢久, 佐藤佑樹

Property Type: Patent

Research Projects 9

次世代磁性受動素子開発に向けたMHz帯鉄損発現機構の解明

谷口卓也

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(C)

Institution: 東北大学

2026/04 - 2029/03
永久磁石の3次元マルチモーダル測定とデータ科学手法による統合解析

岡本聡, 林雄二郎, 鈴木基寛, 谷口卓也

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

2024/04 - 2028/03
高周波パワーエレクトロニクスに向けたMHz帯における鉄損発生機構の解明

Offer Organization: 公益財団法人村田学術振興・教育財団

System: 研究助成

2025/04 - 2027/03
71st Annual Conference on Magnetism and Magnetic Materialsへの参加

Offer Organization: 一般財団法人丸文財団

System: 国際交流助成

2026/11 - 2026/11
電界効果を用いた時間変調型メタマテリアルの開発

谷口卓也, 児玉俊之

Offer Organization: 東北大学多元物質科学研究所

System: 2025年度多元研プロジェクト【特定テーマ】学内若手共同研究

Institution: 東北大学多元物質科学研究所

2025/05 - 2026/03
Magnons in Motion: Unraveling the Interaction Between Domain Structures and Spin Dynamics in Synthetic Antiferromagnets

Offer Organization: Tohoku University

System: Ensemble Grants for Early Career Researchers 2025

2025/04 - 2026/03
Development of time-varying metamaterial using spin wave

Takuya Taniguchi, Toshiyuki Kodama

2023/04 - 2024/03
スピン波を用いた磁壁移動型メモリーの開発

Offer Organization: 日本学術振興会

System: 海外特別研究員

2018/04 - 2020/03
新規スピントルクを利用した磁壁移動型メモリーの研究

谷口卓也

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 特別研究員奨励費

Institution: 京都大学

2016/04/22 - 2018/03/31

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本研究課題では、次世代不揮発磁気記録素子として新規スピントルクであるスピンホールトルクを用いた(A)省電力・(B)大容量な磁壁移動型メモリーの研究に取り組んでいる。 (A)前年度より高周波電流による共鳴現象を利用した閾電流密度の低減に取組んでいる。前年度では磁壁の振動周波数が実験可能な周波数帯にあることをシミュレーションを用いて明らかにした。そこで、本年度では実際に磁壁を試料中に導入し、まず高周波電流による共鳴現象を利用した閾磁場の減少を検出することを試みた。ここで閾磁場とは磁壁が動くために最低限必要な外部磁場のことである。その結果、高周波電流によるジュール熱の影響が大きく、共鳴現象による閾磁場の減少を観測することに失敗した。加えて、ベクトルネットワークアナライザーを用いて磁壁の共鳴現象の検出を試みた。しかし、本実験においても有意な結果は得られなかった。 (B)前年度では、大容量な磁壁メモリーに向けて、室温下で磁壁位置が熱によって揺らぐ大きさを調査し、最大磁壁密度の調査に必要な磁壁間隔距離の指標を得た。今年度では実験と考察を進め、更に、熱活性磁壁移動現象を説明する理論の重要な仮定である多様な長さの磁壁セグメントが確かに存在するということも明らかにした。熱活性磁壁移動現象は磁壁位置の熱安定性を評価する際の一般的な調査対象であるため、熱安定性の見積もりに用いられる理論は確固たるものである必要がある。今年度で得られた研究成果は理論を実験的に裏付ける成果であり、応用的にも学術的にも大変価値がある。本研究により、新規スピントルクを利用した磁壁移動型メモリーの研究として当初予定していた計画は遂行できなかったものの、磁壁移動型メモリーというより大きな枠組みにおける重要な知見が得られた。

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