TOHOKU UNIVERSITY Researchers

Details of the Researcher

Home

日本語 English

Katsuki Kinjo

Section

Institute of Multidisciplinary Research for Advanced Materials

Job title

Assistant Professor

researchmap

https://researchmap.jp/kinjokatsuki

J-GLOBAL ID

202201011603776839

e-Rad No.

80981696

ORCID

https://orcid.org/0000-0002-4938-5349

Researcher ID

IYJ-1382-2023

Research History 1

2023/04 - Present

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Assistant Professor

Education 3

Kyoto University　Graduate School of Science　Division of Physics and Astronomy

2020/04 - 2023/03
Kyoto University　Graduate School of Science　Division of Physics and Astronomy

2018/04 - 2020/03
Kyoto University　Faculty of Science

2014/04 - 2018/03

Research Interests 4

中性子散乱
核磁気共鳴
超伝導
磁性

Research Areas 1

Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

Awards 1

Inoue Research Award for Young Scientists

2024/02　Inoue Foundation for Science　Nuclear Magnetic Resonance Study of UTe2 in Multiple Phases of Superconductivity

Papers 29

Intimate relationship between spin configuration in the triplet pair and superconductivity in UTe <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi/> <mml:mn>2</mml:mn> </mml:msub> </mml:math>

Hiroki Matsumura, Yuki Takahashi, Riku Matsubayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Motoi Kimata, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Atsushi Miyake, Dai Aoki, Tetsuya Furukawa, Takahiro Sasaki

Physical Review B　2026/02/03
Publisher: American Physical Society (APS)
DOI： 10.1103/xr3p-cxbt 　

ISSN： 2469-9950

eISSN： 2469-9969
Irreversible process of the atomic reconstruction phenomenon induced by uniaxial stress in MnP

Hiromu Tamatsukuri, Tatsuya Kozawa, Setsuo Mitsuda, Masayoshi Fujihala, Katsuki Kinjo, Kazuhiro Nawa, Hung-Cheng Wu, Taku J. Sato, Shin-ichiro Yano

Physical Review B　112　(18)　2025/11/24
Publisher: American Physical Society (APS)
DOI： 10.1103/5sjv-4njg 　

ISSN： 2469-9950

eISSN： 2469-9969
𝑏-axis and 𝑐-axis Knight shift measurements in the superconducting state on ultraclean UTe2 with 𝑇𝑐=2.1 K

H. Matsumura, Y. Takahashi, K. Kinjo, S. Kitagawa, K. Ishida, Y. Tokunaga, H. Sakai, S. Kambe, A. Nakamura, Y. Shimizu, Y. Homma, D. Li, F. Honda, A. Miyake, D. Aoki

Physical Review B　111　(17)　2025/05/23
Publisher: American Physical Society (APS)
DOI： 10.1103/physrevb.111.174526 　

ISSN： 2469-9950

eISSN： 2469-9969
Observation of antiferromagnetic order in a quasicrystal

R. Tamura, T. Abe, S. Yoshida, Y. Shimozaki, S. Suzuki, A. Ishikawa, F. Labib, M. Avdeev, K. Kinjo, K. Nawa, T. J. Sato

Nature Physics　21　(6)　974-979　2025/04/14
Publisher: Springer Science and Business Media LLC
DOI： 10.1038/s41567-025-02858-0 　

ISSN： 1745-2473

eISSN： 1745-2481
Intrinsic low-temperature magnetic properties on ultraclean UTe2 with Tc=2.1 K revealed by Te125 NMR

Hiroki Matsumura, Shunsaku Kitagawa, Shiki Ogata, Riku Matsubayashi, Hiroki Fujibayashi, Katsuki Kinjo, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Atsushi Miyake, Dai Aoki

Physical Review B　2025/03/10

DOI： 10.1103/PhysRevB.111.094507 　
Appearance of 𝑐-axis magnetic moment in odd-parity antiferromagnetic state in CeRh2⁢As2 revealed by 75 As -NMR

Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo, Kenji ISHIDA, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

Physical Review B　2024/12/12

DOI： 10.1103/physrevb.110.214509 　

ISSN： 2469-9950 2469-9969
Dual Crystal‐Liquid Thermal Transport Behavior in MAPbCl₃

Jia‐Kai Hu, Yu‐Ju Lee, Cheng‐Chieh Wu, Chi‐Hung Lee, Chun‐Ming Wu, Hung‐Cheng Wu, Kazuhiro Nawa, Katsuki Kinjo, Taku J. Sato, Pai‐Chun Wei

Small　2024/12/04
Publisher: Wiley
DOI： 10.1002/smll.202408773 　

ISSN： 1613-6810

eISSN： 1613-6829

More details Close

Abstract Phonon dynamics in organic–inorganic hybrid perovskites (OIHPs) exhibit inherent complexity driven by the intricate interactions between rotatable organic cations and dynamically disordered inorganic octahedra, mediated by hydrogen bonding. This study aims to address this complexity by investigating the thermal transport behavior of MAPbCl₃ as a gateway to the OIHPs family. The results reveal that the ultralow thermal conductivity of MAPbCl₃ arises from a synergistic interplay of exceptionally low phonon velocities, short phonon lifetimes, and phonon mean free paths approaching the Regel‐Ioffe limit. Additionally, the thermal conductivity of MAPbCl₃ approaches its theoretical amorphous limit across a broad temperature range, with its thermal transport behavior transitioning from crystal‐like to more liquid‐like during the orthorhombic‐to‐cubic phase transitions. Furthermore, a phonon drag effect is observed at 17 K, with Umklapp scattering serving as the predominant phonon resistive mechanism in the orthorhombic phase. In contrast, dynamic lattice distortions caused by the jumping rotation of MA⁺ cations become the primary factors influencing thermal transport in the cubic phase.
Present Status and Future Prospects of the Thermal-neutron Triple-axis Spectrometer 4G-GPTAS

Kazuhiro Nawa, Daisuke Okuyama, Hung-Cheng Wu, Ryo Murasaki, Shinnosuke Matsuzaka, Katsuki Kinjo, Taku J. Sato

Journal of the Physical Society of Japan　93　(9)　2024/09/15
Publisher: Physical Society of Japan
DOI： 10.7566/jpsj.93.091001 　

ISSN： 0031-9015

eISSN： 1347-4073
Unveiling exotic magnetic phase diagram of a non-Heisenberg quasicrystal approximant

Farid Labib, Kazuhiro Nawa, Shintaro Suzuki, Hung-Cheng Wu, Asuka Ishikawa, Kazuki Inagaki, Takenori Fujii, Katsuki Kinjo, Taku J. Sato, Ryuji Tamura

Materials Today Physics　40　101321-101321　2024/01
Publisher: Elsevier BV
DOI： 10.1016/j.mtphys.2023.101321 　

ISSN： 2542-5293
Large Perpendicular Magnetic Anisotropy Induced by an Intersite Charge Transfer in Strained EuVO₂H Films

Morito Namba, Hiroshi Takatsu, Riho Mikita, Yao Sijia, Kantaro Murayama, Hao-Bo Li, Ryo Terada, Cédric Tassel, Hiroki Ubukata, Masayuki Ochi, Regino Saez-Puche, Elias Palacios Latasa, Naoki Ishimatsu, Daisuke Shiga, Hiroshi Kumigashira, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Takahito Terashima, Koji Fujita, Takeaki Mashiko, Keiichi Yanagisawa, Koji Kimoto, Hiroshi Kageyama

Journal of the American Chemical Society　2023/09/28
Publisher: American Chemical Society (ACS)
DOI： 10.1021/jacs.3c04521 　

ISSN： 0002-7863

eISSN： 1520-5126
Superconducting spin reorientation in spin-triplet multiple superconducting phases of UTe 2

Katsuki Kinjo, Hiroki Fujibayashi, Hiroki Matsumura, Fumiya Hori, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Science Advances　2023/07/28

DOI： 10.1126/sciadv.adg2736 　
Gapless fermionic excitation in the antiferromagnetic state of ytterbium zigzag chain

Fumiya Hori, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Souichiro Mizutani, Rikako Yamamoto, Yudai Ohmagari, Takahiro Onimaru

Communications Materials　2023/07/21

DOI： 10.1038/s43246-023-00381-4 　
Large Reduction in the a-axis Knight Shift on UTe2 with Tc = 2.1 K

Hiroki Matsumura, Hiroki Fujibayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Journal of the Physical Society of Japan　92　(6)　2023/06/15
Publisher: Physical Society of Japan
DOI： 10.7566/JPSJ.92.063701 　

ISSN： 0031-9015

eISSN： 1347-4073
Low-Temperature Magnetic Fluctuations Investigated by ¹²⁵Te-NMR on the Uranium-Based Superconductor UTe₂

Hiroki Fujibayashi, Katsuki Kinjo, Genki Nakamine, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Journal of the Physical Society of Japan　92　(5)　2023/05/15
Publisher: Physical Society of Japan
DOI： 10.7566/jpsj.92.053702 　

ISSN： 0031-9015

eISSN： 1347-4073
Parity Transition of Spin-Singlet Superconductivity Using Sublattice Degrees of Freedom

Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo, Kenji Ishida, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

PHYSICAL REVIEW LETTERS　130　(16)　2023/04

DOI： 10.1103/PhysRevLett.130.166001 　

ISSN： 0031-9007

eISSN： 1079-7114
Change of superconducting character in UTe2 induced by magnetic field

K. Kinjo, H. Fujibayashi, S. Kitagawa, K. Ishida, Y. Tokunaga, H. Sakai, S. Kambe, A. Nakamura, Y. Shimizu, Y. Homma, D. X. Li, F. Honda, D. Aoki, K. Hiraki, M. Kimata, T. Sasaki

Physical Review B　107　(6)　2023/02/10
Publisher: American Physical Society (APS)
DOI： 10.1103/physrevb.107.l060502 　

ISSN： 2469-9950

eISSN： 2469-9969
Investigation of the Hyperfine Coupling Constant of Locally Noncentrosymmetric Heavy-fermion Superconductor CeRh₂As₂

Ogata, S., Kitagawa, S., Kibune, M., Ishida, K., Kinjo, K., Br, o, M., Geibel, C., Khim, S., Hassinger, E.

New Physics: Sae Mulli　73　(12)　2023

DOI： 10.3938/NPSM.73.1115 　

ISSN： 2289-0041 0374-4914
Site Split of Antiferromagnetic α-Mn Revealed by ⁵⁵Mn Nuclear Magnetic Resonance

Masahiro Manago, Gaku Motoyama, Shijo Nishigori, Kenji Fujiwara, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Kazuto Akiba, Shingo Araki, Tatsuo C. Kobayashi, Hisatomo Harima

Journal of the Physical Society of Japan　91　(11)　2022/11/15
Publisher: Physical Society of Japan
DOI： 10.7566/jpsj.91.113701 　

ISSN： 0031-9015

eISSN： 1347-4073
Superconducting spin smecticity evidencing the Fulde-Ferrell-Larkin-Ovchinnikov state in Sr 2 RuO 4

K. Kinjo, M. Manago, S. Kitagawa, Z. Q. Mao, S. Yonezawa, Y. Maeno, K. Ishida

Science　376　(6591)　397-400　2022/04/22
Publisher: American Association for the Advancement of Science (AAAS)
DOI： 10.1126/science.abb0332 　

ISSN： 0036-8075

eISSN： 1095-9203

More details Close

Translational symmetry breaking is antagonistic to static fluidity but can be realized in superconductors, which host a quantum-mechanical coherent fluid formed by electron pairs. A peculiar example of such a state is the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, induced by a time-reversal symmetry–breaking magnetic field applied to spin-singlet superconductors. This state is intrinsically accompanied by the superconducting spin smecticity, spin density–modulated fluidity with spontaneous translational-symmetry breaking. Detection of such spin smecticity provides unambiguous evidence for the FFLO state, but its observation has been challenging. Here, we report the characteristic “double-horn” nuclear magnetic resonance spectrum in the layered superconductor Sr ₂ RuO ₄ near its upper critical field, indicating the spatial sinusoidal modulation of spin density that is consistent with superconducting spin smecticity. Our work reveals that Sr ₂ RuO ₄ provides a versatile platform for studying FFLO physics.
Superconducting Order Parameter in UTe2 Determined by Knight Shift Measurement

Hiroki Fujibayashi, Genki Nakamine, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Journal of the Physical Society of Japan　91　(4)　2022/04/15
Publisher: Physical Society of Japan
DOI： 10.7566/JPSJ.91.043705 　

ISSN： 0031-9015

eISSN： 1347-4073
Two-Dimensional XY-Type Magnetic Properties of Locally Noncentrosymmetric Superconductor CeRh2As2

Shunsaku Kitagawa, Mayu Kibune, Katsuki Kinjo, Masahiro Manago, Takanori Taniguchi, Kenji Ishida, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

Journal of the Physical Society of Japan　91　(4)　2022/04/15
Publisher: Physical Society of Japan
DOI： 10.7566/JPSJ.91.043702 　

ISSN： 0031-9015

eISSN： 1347-4073
Drastic change in magnetic anisotropy of UTe2 under pressure revealed by Te125 -NMR

Katsuki Kinjo, Hiroki Fujibayashi, Genki Nakamine, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Physical Review B　105　(14)　2022/04/06

DOI： 10.1103/PhysRevB.105.L140502 　

ISSN： 2469-9950

eISSN： 2469-9969
Impurity-Robust Bulk Gapless Excitation in the Yb-Based Zigzag Chain Compound YbCuS₂

Fumiya Hori, Katsuki Kinjo, Shunksaku Kitagawa, Kenji Ishida, Yudai Ohmagari, Takahiro Onimaru

Journal of Physics: Conference Series　2164　(1)　012027-012027　2022/03/01
Publisher: IOP Publishing
DOI： 10.1088/1742-6596/2164/1/012027 　

ISSN： 1742-6588

eISSN： 1742-6596

More details Close

Abstract We have performed ⁶³Cu-nuclear quadrupole resonance (NQR) measurements using a lump sample of the Yb zigzag-chain compound YbCuS₂ with a small surface area to investigate the sample dependence of low-temperature magnetic properties in YbCuS₂ by comparing with the previous study with different powdered sample. The line width of NQR signals in the present lump sample is larger than that in the previous powdered sample. In addition, the transition temperature T_N ∼ 0.92 K in the present lump sample is lower than that in the previous powdered sample (∼ 0.95 K). These results suggest that the quality of the present lump sample is worse than that of the previous powdered sample. However, the T-linear behavior of the nuclear spin-lattice relaxation rate 1/T₁ was observed below 0.5 K and the value of 1/T₁T in both samples is almost the same even though the sample quality and sample geometry are different. This suggests that T-linear behavior in 1/T₁ arises from the impurity-robust bulk gapless excitation inherent in YbCuS₂ rather than from sample issues such as the sample quality or geometry.
Slow Electronic Dynamics in the Paramagnetic State of UTe₂

Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Yoshinori Haga, Yoshifumi Tokiwa, Petr Opletal, Hiroki Fujibayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Journal of the Physical Society of Japan　91　(2)　2022/02/15

DOI： 10.7566/jpsj.91.023707 　

ISSN： 0031-9015

eISSN： 1347-4073
Observation of Antiferromagnetic Order as Odd-Parity Multipoles inside the Superconducting Phase in CeRh2As2

Mayu Kibune, Shunsaku Kitagawa, Katsuki Kinjo, Shiki Ogata, Masahiro Manago, Takanori Taniguchi, Kenji Ishida, Manuel Brando, Elena Hassinger, Helge Rosner, Christoph Geibel, Seunghyun Khim

Physical Review Letters　128　(5)　2022/02/03
Publisher: American Physical Society (APS)
DOI： 10.1103/PhysRevLett.128.057002 　

ISSN： 0031-9007

eISSN： 1079-7114
Inhomogeneous Superconducting State Probed by ¹²⁵Te NMR on UTe₂

Genki Nakamine, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Journal of the Physical Society of Japan　90　(6)　064709-064709　2021/06/15

DOI： 10.7566/jpsj.90.064709 　

ISSN： 0031-9015

eISSN： 1347-4073
Anisotropic response of spin susceptibility in the superconducting state of UTe2 probed with Te125−NMR measurement

Genki Nakamine, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

Physical Review B　103　(10)　2021/03/17

DOI： 10.1103/PhysRevB.103.L100503 　

ISSN： 2469-9950

eISSN： 2469-9969
Reduction of the 17O Knight Shift in the Superconducting State and the Heat-up Effect by NMR Pulses on Sr2RuO4

Katsuki Kinjo

Journal of the Physical Society of Japan　89　(3)　034712-034712　2020/03/15
Publisher: Physical Society of Japan
DOI： 10.7566/jpsj.89.034712 　

ISSN： 0031-9015 1347-4073

eISSN： 1347-4073
Magnetic Field Effect on s-wave Superconductor LaRu4P12 Studied by 31P-NMR

Katsuki Kinjo

Journal of the Physical Society of Japan　88　(6)　65002-65002　2019/06/15
Publisher: Physical Society of Japan
DOI： 10.7566/jpsj.88.065002 　

ISSN： 0031-9015 1347-4073

Show all ︎Show first 5

Misc. 17

Ce-TM-Al-Ge/Si系(TM=遷移金属)における磁性

金城克樹, 作田楓斗, 那波和宏, 佐藤卓

2025/03
Magnetic structure of TbInCu₄ and its magnetic diffuse scattering due to FCC frustration

吉本周玄, 田畑吉計, 和氣剛, 中村裕之, 南部雄亮, 佐藤卓, 那波和弘, WU Hung-Cheng, 金城克樹

日本物理学会講演概要集(CD-ROM)　80　(1)　2025

ISSN： 2189-079X
中性子非弾性散乱によるYb3Co4Al12の結晶場励起の研究

金城克樹, Chun Wai Tsang, Wu Hung-Cheng, 那波和宏, 壁谷典幸, 木村憲彰, 佐藤卓

日本物理学会第７９回年次大会　2024/09
MnPにおける一軸応力誘起原子再構成現象の不可逆的進行過程

玉造博夢, 小澤竜也, 満田節生, 藤原理賀, 金城克樹, 那波和宏, Wu Hung-Cheng, 矢野真一郎

日本物理学会第７９回年次大会　2024/09
Magnetic structure and magnetic diffuse scattering of the FCC frustrated TbInCu₄

吉本周玄, 田畑吉計, 和氣武, 中村裕之, 南部雄亮, 佐藤卓, 那波和弘, WU Hung-Cheng, 金城克樹

日本中性子科学会年会講演概要集　24th (CD-ROM)　2024
Pressure NMR study on ultra-clean single crystal of the spin-triplet superconductor UTe₂

松村拓輝, 高橋侑希, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, LI D., 本多史憲, 本多史憲, 青木大, 青木大

日本物理学会講演概要集(CD-ROM)　79　(1)　2024

ISSN： 2189-079X
Re-measurement of a-axis component of Knight shift in spin-triplet superconductor UTe₂

中西宏介, 高橋侑希, 松村拓輝, 藤林裕己, 金城克樹, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, LI D., 本多史憲, 本多史憲, 青木大, 青木大

日本物理学会講演概要集(CD-ROM)　79　(1)　2024

ISSN： 2189-079X
Discovery of a novel quasiparticle in a Yb zigzag-chain semiconductor YbCuS₂

堀文哉, 金城克樹, 松平広康, 北川俊作, 石田憲二, 大曲雄大, 白井宏尚, 白井宏尚, 水谷宗一郎, 鬼丸孝博

日本物理学会講演概要集(CD-ROM)　79　(1)　2024

ISSN： 2189-079X
NQR study on the locally inversion breaking superconductor LaRh₂As₂: comparison with CeRh₂As₂

尾方司貴, 木舩茉悠, 金城克樹, 北川俊作, 石田憲二, BRANDO Manuel, HASSINGER Elena, HASSINGER Elena, GEIBEL Christoph, KHIM Seunghyun

日本物理学会講演概要集(CD-ROM)　79　(1)　2024

ISSN： 2189-079X
The changes in magnetism and superconductivity by sample purification of the locally inversion breaking superconductor CeRh₂As₂

尾方司貴, 木舩茉悠, 金城克樹, 北川俊作, 石田憲二, BRANDO Manuel, HASSINGER Elena, ROSNER Helge, GEIBEL Christoph, KHIM Seunghyun

日本物理学会講演概要集(CD-ROM)　78　(2)　2023

ISSN： 2189-079X
Superconducting gap structure of ultra-clean single crystal of the spin-triplet superconductor UTe₂ revealed by NMR measurements

松村拓輝, 高橋侑希, 藤林裕己, 金城克樹, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 清水悠晴, 仲村愛, LI D., 本間佳哉, 本多史憲, 本多史憲, 青木大, 青木大

日本物理学会講演概要集(CD-ROM)　78　(2)　2023

ISSN： 2189-079X
Thermodynamic investigation of the relationship between the anion order and superconductivity in quasi-one-dimensional organic superconductor (TMTSF)₂ClO₄

矢野翔太, 福島和実, 金城克樹, 山根総一郎, TO Le Hong Hoang, SENZIER Pascale, SENGUPTA Shamashis, JEROME Denis, MARRACHE-KIKUCHI Claire Akiko, 米澤進吾

日本物理学会講演概要集(CD-ROM)　78　(1)　2023

ISSN： 2189-079X
Single crystal growth of polar metal YbCuBi and related materials

金城克樹, 池田敦俊, 前野悦輝, 北川俊作, 石田憲二, 米澤進吾, 那波和宏, 佐藤卓

日本物理学会講演概要集(CD-ROM)　78　(2)　2023

ISSN： 2189-079X
Magnetic field-induced transition with spin rotation in the superconducting phase of UTe2

K. Kinjo, H. Fujibayashi, S. Kitagawa, K. Ishida, Y. Tokunaga, H. Sakai, S. Kambe, A. Nakamura, Y. Shimizu, Y. Homma, D. X. Li, F. Honda, D. Aoki, K. Hiraki, M. Kimata, T. Sasaki

2022/06/06

More details Close

UTe2 is a recently discovered spin-triplet superconductor. One of the characteristic features of UTe2 is a magnetic field (H)-boosted superconductivity above 16 T when H is applied exactly parallel to the b axis. To date, this superconducting (SC) state has not been thoroughly investigated, and the SC properties as well as the spin state of this high-H SC (HHSC) phase are not well understood. In this study, we performed AC magnetic susceptibility and nuclear magnetic resonance (NMR) measurements and found that, up to 24.8 T, the HHSC state is intrinsic to UTe2 and quite sensitive to the H angle, and that its SC character is different from that in the low-H SC (LHSC) state. The dominant spin component of the spin-triplet pair is along the a axis in the LHSC state but is changed in the HHSC state along the b axis. Our results indicate that H-induced multiple SC states originate from the remaining spin degrees of freedom.
First-Order Antiferromagnetic Transition and Novel Gapless Excitation in a 4f Zigzag Chain Compound YbCuS2

F. Hori, K. Kinjo, S. Kitagawa, K. Ishida, Yudai Ohmagari, T. Onimaru

2022/01/19

More details Close

We report on the 63/65Cu-nuclear magnetic resonance and nuclear quadrupole resonance (NQR) studies of trivalent Yb zigzag chain compound YbCuS2. Sharp NQR signals were observed in the paramagnetic (PM) state. Below TO = 0.95 K, the multi peaks induced by the internal magnetic fields arising from the antferromagnetic (AFM) ordered moments appear and coexist with the PM signal down to 0.85 K, evidencing the first-order AFM phase transition at TO. In addition, the nuclear spin-lattice relaxation rate 1/T1 abruptly decreases below TO and shows the T-linear behavior below 0.5 K. The significant large 1/T1T value strongly suggests the presence of the novel gapless spin excitation in low temperature region.
Anomalous Superconductivity on Sr₂RuO₄ near Upper Critical Field

金城克樹, 真砂全宏, 真砂全宏, 北川俊作, 石田憲二, MAO Z. Q., MAO Z. Q., 米澤進吾, 前野悦輝

日本物理学会講演概要集(CD-ROM)　75　(1)　2020

ISSN： 2189-079X
Superconducting State on Sr₂RuO₄ near Upper Critical Field

金城克樹, 真砂全宏, 北川俊作, 石田憲二, MAO Z. Q., 米澤進吾, 前野悦輝

日本物理学会講演概要集(CD-ROM)　75　(2)　2020

ISSN： 2189-079X

Show all ︎Show first 5

Books and Other Publications 1

Nuclear Magnetic Resonance Study on Multiple Superconducting Phases in UTe2

Katsuki Kinjo

2024/11

ISBN: 9789819786459

Presentations 44

Magnetic excitation of Yb-based hexagonal perovskite Yb2CuTiO6

2025/12/17
Neutron experiments on Yb-based breathing kagome compound and present status of GPTAS Invited

Katsuki Kinjo

REQM2025　2025/12/03
Spin smectic state evidencing the FFLO state in Sr2RuO4 Invited

Katsuki Kinjo

REQM2025　2025/12/02
DyRu2Si2の部分無秩序相における磁気散漫散乱と超長周期磁気構造

吉本周弘, 田畑吉計, 和気剛, 中村裕之, 那波和弘, 金城克樹, 佐藤卓, Hung-Cheng Wu

日本物理学会第８０回年次大会　2025/09/18
異方的な強磁性体CeAgSb2の磁場方向依存性

大口峻平, 北川俊作, 石田憲二, 金城克樹, 那波和宏, 佐藤卓

日本物理学会第８０回年次大会　2025/09/18
希土類三角格子化合物REPtAl4Ge2の合成と磁性

金城克樹, 作田楓斗, 那波和宏, 佐藤卓

日本物理学会第８０回年次大会　2025/09/17
中性子散乱によるGa–Pd–Tb系近似結晶の結晶場励起の検証

ユヘリン, 那波和宏, 金城克樹, 肖美紀, 萬戸孝仁, 佐藤卓

日本物理学会第８０回年次大会　2025/09/17
LuFe2O4単結晶常磁性相における磁場による短距離磁気秩序の制御

于洪武, 作田楓斗, 藤原孝将, 金城克樹, 那波和宏, 加倉井和久, 佐藤卓, 深田幸正, 矢野優太, 朴規相, 池田直

2025/09/16
圧力下NMRで観る超純良単結晶UTe2の超伝導−超伝導転移

松村拓輝, 松林睦, 金城克樹, 北川俊作, 石田憲二, 徳永暢, 酒井宏典, 神戸振作, 仲村愛, 清水悠哉, 本間住哉, 李徳新, 本多史憲, 三宅厚志, 青木大

日本物理学会第８０回年次大会　2025/09/16
立方晶希土類ホウ化物RBn(n=6, 12, 66; R=Yb, Sm, Ce, Tb)の強相関物性

伊賀文俊, 宮本明佳, 谷口竣哉, 松尾晶, 松田康弘, 金道浩一, 筒井智嗣, 大渕博宣, 本間徹生, 佐藤佳輔, 鬼丸孝博, 道村真司, 金城克樹, 那波和宏

2025/03/21
Smイオン置換したCeCoIn5における超伝導の抑制と磁気秩序の誘起

小泉遼介, 高橋哲平, 富士本駿, 海老澤秀明, 松尾晶, 金道浩一, 那波和宏, 金城克樹, 佐藤卓, 天谷健一, 横山淳

2025/03/20
Ce-TM-Al-Ge/Si系(TM=遷移金属)における磁性

金城克樹, 作田楓斗, 那波和宏, 佐藤卓

2025/03/20
超純良単結晶UTe2におけるスピン三重項超伝導の新現象

松村拓輝, 松林陸, 高橋侑希, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 三宅厚志, 青木大

2025年春季大会物性　2025/03/18
カリウムジャロサイトにおけるマグノンバンドのトポロジー

那波和宏, Pharit Piyawongwatthana, Kitwitt Matan, 村井直樹, 金城克樹, 佐藤卓

2025年春季大会物性　2025/03/18
希土類化合物TbInCu4の磁気構造とFCCフラストレーション由来の磁気散漫散乱

吉本周玄, 田畑吉計, 和氣剛, 中村裕之, 南部雄亮, 佐藤卓, 那波和弘, Hung-Cheng Wu, 金城克樹

2025年春季大会物性　2025/03/18
超純良単結晶UTe2における通常状態の磁気特性

北川俊作, 松村拓輝, 尾方司貴, 松林陸, 金城克樹, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 三宅厚志, 青木大

2025年春季大会物性　2025/03/18
125Te-NMR測定から見るUTe2純良単結晶の超伝導相内における異常な励起

松村拓輝, 高橋侑希, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 三宅厚志, 青木大

日本物理学会第７９回年次大会　2024/09/19
スピン三重項超伝導体UTe2におけるスピン磁化率の磁場依存性

高橋侑希, 松村拓輝, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 清水悠晴, 仲村愛, 李徳新, 本間佳哉, 本多史憲, 三宅厚志, 青木大

日本物理学会第７９回年次大会　2024/09/19
125Teナイトシフト測定で明らかになった純良単結晶UTe2のb軸スピン磁化率の振舞い

松村拓輝, 高橋侑希, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 三宅厚志, 青木大

日本物理学会第７９回年次大会　2024/09/19
中性子非弾性散乱によるYb3Co4Al12の結晶場励起の研究

金城克樹, Chun Wai Tsang, Wu Hung-Cheng, 那波和宏, 壁谷典幸, 木村憲彰, 佐藤卓

日本物理学会第７９回年次大会　2024/09/17
MnPにおける一軸応力誘起原子再構成現象の不可逆的進行過程

玉造博夢, 小澤竜也, 満田節生, 藤原理賀, 金城克樹, 那波和宏, Wu Hung-Cheng, 矢野真一郎

日本物理学会第７９回年次大会　2024/09/16
スピン三重項超伝導体UTe2超純良単結晶の圧力下NMR

松村拓輝, 高橋侑希, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 青木大

日本物理学会2024年春季大会　2024/03/21
スピン三重項超伝導体UTe2 1.6 K試料におけるナイトシフトa軸成分の再測定

中西宏介, 高橋侑希, 松村拓輝, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李徳新, 本多史憲, 青木大

日本物理学会2024年春季大会　2024/03/21
Ru-Sn籠を持つ擬スクッテルダイト化合物の超伝導

金城克樹, 那波和宏, 佐藤卓, 池田敦俊, 米澤進吾

日本物理学会2024年春季大会　2024/03/20
Ybジグザグ鎖半導体YbCuS2における新奇準粒子の発見

堀文哉, 金城克樹, 松平広康, 北川俊作, 石田憲二, 大曲雄大, 白井宏尚, 水谷宗一郎, 鬼丸孝博

日本物理学会2024年春季大会　2024/03/19
局所空間反転対称性の破れた超伝導体LaRh2As2のNQR: CeRh2As2との比較

尾方司貴, 木舩茉悠, 金城克樹, 北川俊作, 石田憲二, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

日本物理学会2024年春季大会　2024/03/18
局所的に反転対称性の破れた超伝導体CeRh2As2の試料純良化による磁気相，超伝導相の変化

尾方司貴, 木舩茉悠, 金城克樹A, 北川俊作, 石田憲二, Manuel Brando, Elena Hassinger, Helge Rosner, Christoph Geibel, Seunghyun Khim

日本物理学会第78回年次大会　2023/09/19
一軸圧下Ru-NQR によるURu2Si2の研究 II

神戸振作, 芳賀芳範, 酒井宏典, 徳永陽, 金城克樹, 北川俊作, 石田憲二, 播磨尚朝

日本物理学会第78回年次大会　2023/09/18
スピン三重項超伝導体UTe2純良単結晶のb軸磁場下NMR

高橋侑希, 松村拓輝, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 清水悠晴, 仲村愛, 李徳新, 本間佳哉, 本多史憲, 青木大

日本物理学会第78回年次大会　2023/09/18
極性金属YbCuBiとその周辺物質の単結晶育成と低温物性

金城克樹, 池田敦俊, 前野悦輝, 北川俊作, 石田憲二, 米澤進吾, 那波和宏, 佐藤卓

日本物理学会第78回年次大会　2023/09/18
NMR測定から見るスピン三重項超伝導体UTe2純良単結晶の超伝導ギャップ構造

松村拓輝, 高橋侑希, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 清水悠晴, 仲村愛, 李徳新, 本間佳哉, 本多史憲, 青木大

日本物理学会第78回年次大会　2023/09/16
125Te-NMR Knight Shift Measurement on UTe2 with Tc = 2.1 K

Hiroki Matsumura, Hiroki Fujibayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

2023/07/04
NMR Study of Superconducting Multiphase and Magnetism in a Novel Heavy Fermion Superconductor CeRh2As2

Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo, Kenji Ishida, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

SCES 2023　2023/07/04
NMR Study on Multiple Superconducting Phases of UTe2 under Pressure

Katsuki Kinjo, Hiroki Fujibayashi, Hiroki Matsumura, Fumiya Hori, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

SCES2023　2023/07/04
Restriction on Hidden order parameter from Local symmetry at Ru site under uni-axial stress in URu2Si2

S. Kambe, Y. Haga, H. Sakai, Y. Tokunaga, K. Kinjo, S. Kitagawa, K. Ishida

The 10th International Workshop on the Dual Nature of f-Electrons　2023/06/28
Magnetic properties of ultra-clean UTe2 by 125Te-NMR

Hiroki Matsumura, Hiroki Fujibayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

The 10th International Workshop on the Dual Nature of f-Electrons　2023/06/28
NMR study of parity transition of spin-singlet superconductivity in a novel heavy fermion superconductor CeRh2As2

Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo, Kenji Ishida, Manuel Brando, Elena Hassinger, Christoph Geibel, Seunghyun Khim

The 10th International Workshop on the Dual Nature of f-Electrons　2023/06/28
125Te-NMR study on ultra-clean UTe2: Comparison with early-stage results

Hiroki Matsumura, Hiroki Fujibayashi, Katsuki Kinjo, Shunsaku Kitagawa, Kenji Ishida, Yo Tokunaga, Hironori Sakai, Shinsaku Kambe, Ai Nakamura, Yusei Shimizu, Yoshiya Homma, Dexin Li, Fuminori Honda, Dai Aoki

The 10th International Workshop on the Dual Nature of f-Electrons　2023/06/27
極性金属YbCuBiにおける超伝導とJRR-3 4Gの利用促進

金城克樹, 池田敦俊, 米澤進吾, 前野悦輝, 北川俊作, 石田憲二, 那波和宏, 佐藤卓

2023/06/10
純良単結晶UTe2における125Te-NMR測定：超伝導状態のスピン磁化率

松村拓輝, 藤林裕己, 金城克樹, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 清水悠晴, 仲村愛, 李徳新, 本間佳哉, 本多史憲, 青木大

日本物理学会2023年春季大会　2023/03/25
純良単結晶UTe2における125Te-NMR測定：常伝導状態における磁気揺らぎ

金城克樹, 藤林裕己, 松村拓輝, 北川俊作, 石田憲二, 徳永陽, 酒井宏典, 神戸振作, 仲村愛, 清水悠晴, 本間佳哉, 李德新, 本多史憲, 青木大

日本物理学会2023年春季大会　2023/03/25
Observation of superconducting-spin smectic state as FFLO state in Sr2RuO4 using 17O-NMR

2023/03/24
擬一次元有機超伝導体(TMTSF)2ClO4のアニオン秩序と超伝導の関係の熱力学的検証

矢野翔太, 福島和実, 金城克樹, 山根総一郎, Le Hong, Hoàng To, Pascale Senzier, Shamashis Sengupta, Denis Jérome, Claire Akiko Marrache-Kikuchi, 米澤進吾

日本物理学会2023年春季大会　2023/03/23
局所的に反転対称性の破れた超伝導体CeRh2As2における超伝導多重相・反強磁性秩序の微視的解明

尾方司貴, 木舩茉悠, 金城克樹, 北川俊作, 石田憲二, Manuel Brando, Elena Hassinger, Helge Rosner, Christoph Geibel, Seunghyun Khim

日本物理学会2023年春季大会　2023/03/22

Show all Show first 5

Research Projects 3

International collaboration on topological magnetic structures and excitations in quantum magnets using neutron scattering

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Fund for the Promotion of Joint International Research (International Collaborative Research)

Institution: Tohoku University

2023/09/08 - 2027/03/31
磁場で誘起される超伝導スピン凝縮の直接観測

金城克樹

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 研究活動スタート支援

Institution: 東北大学

2023/08/31 - 2025/03/31
京都大学大学院教育支援機構プログラム

2021/10 - 2023/03