Updated on 2026/04/29

写真a

 
ARIMA HIROTO
 
Organization
Institute of Integrated Research Materials and Structures Laboratory Assistant Professor
Title
Assistant Professor
External link

Research Interests

  • 高圧力

  • 熱物性

  • 超伝導

Research Areas

  • Nanotechnology/Materials / Inorganic materials and properties

  • Natural Science / Magnetism, superconductivity and strongly correlated systems

  • Nanotechnology/Materials / Metallic material properties

Education

  • The University of Electro-Communications   Graduate School of Informatics and Engineering   Department of Engineering Science

    2019.4 - 2022.3

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  • The University of Electro-Communications   Graduate School of Informatics and Engineering

    2016.4 - 2019.3

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  • The University of Electro-Communications

    2013.4 - 2016.3

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Research History

  • Institute of Science Tokyo   Institute of Integrated Research, Materials and Structures Laboratory,   Assistant Professor

    2026.4

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  • National Institute of Advanced Industrial Science and Technology

    2025.4 - 2026.3

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  • National Institute of Advanced Industrial Science and Technology

    2023.10 - 2025.3

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  • Tokyo Metropolitan University

    2022.4 - 2023.9

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Professional Memberships

Papers

  • Temperature-dependent X-ray absorption study of the anisotropic negative thermal expansion of Co and Fe-based TrZr compounds Reviewed

    M. Russo, G. Tomassucci, F. Minati, M.Y. Hacisalihoglu, L. Tortora, A. Puri, H. Arima, Y. Mizuguchi, N.L. Saini

    Materials Today Communications   113494 - 113494   2025.8

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.mtcomm.2025.113494

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  • Time-domain thermoreflectance technique using multiple delayed probe pulses for high-throughput data acquisition and analysis Reviewed

    Hiroto Arima, Yuichiro Yamashita, Takashi Yagi

    Science and Technology of Advanced Materials   26 ( 1 )   2025.7

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Informa UK Limited  

    DOI： 10.1080/14686996.2025.2523240

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  • Magneto-thermal switching using superconducting metals and alloys Reviewed

    Hiroto Arima, Takumi Murakami, Poonam Rani, Yoshikazu Mizuguchi

    Science and Technology of Advanced Materials   26 ( 1 )   2025.6

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Informa UK Limited  

    DOI： 10.1080/14686996.2025.2506978

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  • Nonvolatile magneto-thermal switching driven by vortex trapping in commercial In-Sn solder Reviewed

    Poonam Rani, Takumi Murakami, Yuto Watanabe, Hossein Sepehri-Amin, Hiroto Arima, Aichi Yamashita, Yoshikazu Mizuguchi

    Applied Physics Express   18 ( 3 )   033001 - 033001   2025.3

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    Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    Magneto-thermal switching (MTS) is a key technology for efficient thermal management. Recently, large MTS with nonvolatility has been observed in Sn-Pb solders [H. Arima et al. Commun. Mater. 5, 34 (2024)] where phase separation, the different superconducting transition temperatures (T c) of Sn and Pb, and magnetic-flux trapping are the causes of the nonvolatile MTS. To further understand the mechanism and to obtain the strategy for enhancing switching ratio, exploration of new phase-separated superconductors with nonvolatile MTS is needed. Here, we show that the In52-Sn48 commercial solder is a phase-separated superconducting composite with two T c and traps vortices after field cooling. A clear signature of nonvolatile MTS was observed at T = 2.5 K. From specific heat analyses, we conclude that the vortices are mainly trapped in the lower-T c phase (γ-phase) after field cooling, which is evidence that vortex trapping also works on achieving nonvolatile MTS in phase-separated superconducting composites.

    DOI： 10.35848/1882-0786/adb6ee

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    Other Link： https://iopscience.iop.org/article/10.35848/1882-0786/adb6ee/pdf

  • Superconducting properties and electronic structure of CuAl2-type transition-metal zirconide Fe1-Ni Zr2 Reviewed

    Ryunosuke Shimada, Yuto Watanabe, Lorenzo Tortora, Giovanni Tomassucci, Muammer Yasin Hacisalihoglu, Hiroto Arima, Aichi Yamashita, Akira Miura, Chikako Moriyoshi, Naurang L. Saini, Yoshikazu Mizuguchi

    Journal of Alloys and Compounds   1010   177442 - 177442   2025.1

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jallcom.2024.177442

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  • Robust Uniaxial Negative Thermal Expansion and Superconducting Properties in Co1−xFexZr3

    Hiroto Arima, Aichi Yamashita, Akira Miura, Hiroaki Ito, Chikako Moriyoshi, Hiroshi Fujihisa, Yoshikazu Mizuguchi

    Journal of the Physical Society of Japan   93 ( 12 )   124801-1 - 124801-6   2024.12

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.93.124801

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  • Single Crystal Growth and Electronic Properties of RGa6 (R: Rare Earth Metals) Reviewed

    Md Asif Afzal, Ryuji Higashinaka, Yuki Imai, Naoki Nakamura, Ryu Nakachi, Yoshichika Ōnuki, Hiroto Arima, Aichi Yamashita, Yoshikazu Mizuguchi, Dai Aoki, Hisatomo Harima, Yuji Aoki, Tatsuma D. Matsuda

    Journal of the Physical Society of Japan   93 ( 9 )   2024.9

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    Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.93.094705

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  • Large self-heating by trapped-flux reduction in Sn-Pb solders Reviewed

    Yoshikazu Mizuguchi, Takumi Murakami, Md. Riad Kasem, Hiroto Arima

    Europhysics Letters   147 ( 3 )   36003 - 36003   2024.8

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    Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    Magnetic flux trapping in field-cooled (FC) Sn-Pb solders has been recently studied because of the observation of nonvolatile magneto-thermal switching (Arima H. et al., Commun. Mater., 5 (2024) 34) and anomalous magnetic field-temperature (H-T) phase diagrams (Murakami T. et al., AIP Adv., 13 (2023) 125008). In this paper, we investigate the origin of the anomalously low specific heat (C) in Sn10-Pb90 and Sn45-Pb55 solders after FC at H = 1500 Oe. We show that the FC solders exhibit self-heating possibly caused by the flux flow during the reduction of trapped fluxes when heating the sample during the C measurements. The T dependence of T rise clearly exhibits unexpectedly large values when the low-C states are observed. In addition, the cause of the transition-like behavior in C-T of FC solders is explained by local heating during H control and flux-jump phenomena.

    DOI： 10.1209/0295-5075/ad6802

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    Other Link： https://iopscience.iop.org/article/10.1209/0295-5075/ad6802/pdf

  • Magneto-thermal-switching in type-I and type-II superconductors Reviewed

    M. Yoshida, H. Arima, Y. Watanabe, A. Yamashita, Y. Mizuguchi

    Physica C: Superconductivity and its Applications   1354536 - 1354536   2024.5

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.physc.2024.1354536

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  • Observation of nonvolatile magneto-thermal switching in superconductors Reviewed

    Hiroto Arima, Md. Riad Kasem, Hossein Sepehri-Amin, Fuyuki Ando, Ken-ichi Uchida, Yuto Kinoshita, Masashi Tokunaga, Yoshikazu Mizuguchi

    Communications Materials   5 ( 1 )   2024.3

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Applying a magnetic field to a solid changes its thermal-transport properties. Although such magneto-thermal-transport phenomena are usually small effects, giant magneto-thermal resistance has recently been observed in spintronic materials and superconductors, opening up new possibilities in thermal management technologies. However, the thermal conductivity conventionally changes only when a magnetic field is applied due to the absence of nonvolatility, which limits potential applications of thermal switching devices. Here, we report the observation of nonvolatile thermal switching that changes the electron thermal conductivity when a magnetic field is applied and retains the value even when the field is turned off. This unconventional magneto-thermal switching arises in commercial Sn-Pb solders and is realized by phase-separated superconducting states and resultant nonuniform magnetic flux distributions. This result confirms the versatility of the observed phenomenon and aids the development of active solid-state thermal management devices.

    DOI： 10.1038/s43246-024-00465-9

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    Other Link： https://www.nature.com/articles/s43246-024-00465-9

  • Pressure‐Induced Volumetric Negative Thermal Expansion in CoZr2 Superconductor Reviewed

    Yuto Watanabe, Hiroto Arima, Saori Kawaguchi‐Imada, Hirokazu Kadobayashi, Kenta Oka, Hidetomo Usui, Ryo Matsumoto, Yoshihiko Takano, Takeshi Kawahata, Chizuru Kawashima, Hiroki Takahashi, Aichi Yamashita, Yoshikazu Mizuguchi

    Advanced Electronic Materials   2024.3

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    Publishing type：Research paper (scientific journal)   Publisher：Wiley  

    Abstract

    The study investigates the thermal expansion and superconducting properties of a CuAl2‐type (tetragonal) superconductor CoZr2 under high pressures. High‐pressure synchrotron X‐ray diffraction is performed in a pressure range of 2.9 GPa < P < 10.4 GPa, and it is discovered that CoZr2 exhibits volumetric negative thermal expansion (NTE) under high pressures. Although uniaxial positive thermal expansion (PTE) along the a‐axis is observed under ambient pressure, it is suppressed by pressure, whereas a large uniaxial NTE along the c‐axis is maintained under the pressure regime. Because of the combination of the suppressed uniaxial PTE along the a‐axis and uniaxial NTE along the c‐axis, volumetric NTE is achieved under high pressure in CoZr2. The volumetric NTE mechanism is based on the flexible crystal structure caused by the soft Co–Co bond, as observed in the isostructural compound FeZr2, which exhibits a uniaxial NTE along the c‐axis. High‐pressure electrical resistance measurements of CoZr2 are performed and confirm superconductivity at 0.03 GPa < P < 41.9 GPa. Because of the coexistence of the two phenomena, volumetric NTE and superconductivity, in CoZr2 under high pressure, coexistence can be achieved under ambient pressure by tuning the chemical composition after the present observation.

    DOI： 10.1002/aelm.202300896

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  • Magnetic Field Hysteresis of Thermal Conductivity in Type-I and Type-II Superconductors

    Hiroto Arima, Miku Yoshida, Yoshikazu Mizuguchi

    Journal of the Physical Society of Japan   93 ( 1 )   2024.1

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    Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.93.015001

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  • Stabilization of Bi vibration along c-axis in BiS2-based layered compounds La(O,F)Bi(S,Se)2 by Se substitution Reviewed

    Fysol Ibna Abbas, Hiroto Arima, Md. Riad Kasem, Yuto Watanabe, Takumi Hasegawa, Chul-Ho Lee, Aichi Yamashita, Yoshikazu Mizuguchi

    Applied Physics Express   2024.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.35848/1882-0786/ad0ba6

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  • Low-Temperature Chiral Crystal Structure and Superconductivity in (Pt0.2Ir0.8)3Zr5 Reviewed

    Yuto Watanabe, Hiroto Arima, Aichi Yamashita, Akira Miura, Chikako Moriyoshi, Yosuke Goto, Chul-Ho Lee, Ryuji Higashinaka, Hidetomo Usui, Shogo Kawaguchi, Kazuhisa Hoshi, Yoshikazu Mizuguchi

    Journal of the American Chemical Society   146 ( 1 )   773 - 781   2023.12

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/jacs.3c10797

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  • Anomalous field-temperature phase diagram of superconductivity in Sn–Pb solder Reviewed

    Takumi Murakami, Hiroto Arima, Yoshikazu Mizuguchi

    AIP Advances   2023.12

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1063/5.0183526

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  • Effect of Annealing in Eutectic High-Entropy Alloy Superconductor NbScTiZr Reviewed

    Takeru Seki, Hiroto Arima, Yuta Kawasaki, Terukazu Nishizaki, Yoshikazu Mizuguchi, Jiro Kitagawa

    Journal of Superconductivity and Novel Magnetism   2023.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10948-023-06643-z

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  • Nonvolatile Magneto-Thermal Switching in MgB2

    Hiroto Arima, Yoshikazu Mizuguchi

    Journal of the Physical Society of Japan   92 ( 10 )   2023.10

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    Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.92.103702

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  • Superconductivity in In-doped AgPbBiTe3 compounds synthesized by high-pressure synthesis Reviewed

    Takahiro Sawahara, Hiroto Arima, Takayoshi Katase, Aichi Yamashita, Ryuji Higashinaka, Yoshikazu Mizuguchi

    Physica C: Superconductivity and its Applications   2023.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physc.2023.1354308

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  • Large magneto-thermal-switching ratio in superconducting Pb wires Reviewed

    M. Yoshida, H. Arima, A. Yamashita, K. Uchida, Y. Mizuguchi

    Journal of Applied Physics   2023.8

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1063/5.0159336

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  • Controlling of Localization by Elemental-substitution Effect in Layered BiCh2-based Compounds LaO1−xFxBiS2−ySey Reviewed

    Kazuhisa Hoshi, Hiroto Arima, Noriyuki Kataoka, Masayuki Ochi, Aichi Yamashita, Anne de Visser, Takayoshi Yokoya, Kazuhiko Kuroki, Yoshikazu Mizuguchi

    Journal of the Physical Society of Japan   2023.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.7566/jpsj.92.054704

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  • Axis thermal expansion switching in transition-metal zirconides TrZr2 by tuning the c/a ratio

    Hiroto Arima, Md. Riad Kasem, Yoshikazu Mizuguchi

    Applied Physics Express   16 ( 3 )   035503 - 035503   2023.3

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    Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    This study examines the temperature-dependent evolution of the lattice constants for various CuAl2-type compounds, including NiZr2, (Co,Rh,Ir)Zr2, (Fe,Co,Rh,Ir)Zr2, and (Co,Ni,Cu,Rh,Ir)Zr2, in the pursuit of negative or zero thermal expansion. Results reveal that NiZr2 has a positive thermal expansion, while the other compounds exhibit uniaxial negative thermal expansion along the c-axis contraction. The study suggests that the c-axis thermal expansion can be controlled by manipulating the c/a ratio through Tr-site substitution, providing a design principle for achieving negative thermal expansion of the c-axis and potentially zero thermal expansion in a single compound in TrZr2 compounds.

    DOI： 10.35848/1882-0786/acc006

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    Other Link： https://iopscience.iop.org/article/10.35848/1882-0786/acc006/pdf

  • Uniaxial Negative Thermal Expansion in an Orthorhombic Superconductor CoZr3 Reviewed

    Hiroto Arima, Tatsuki Inui, Aichi Yamashita, Akira Miura, Hiroaki Itou, Chikako Moriyoshi, Hiroshi Fujihisa, Yoshikazu Mizuguchi

    Journal of the Physical Society of Japan   2023.2

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.7566/jpsj.92.024602

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  • Sign change in c-axis thermal expansion constant and lattice collapse by Ni substitution in transition-metal zirconide superconductor Co1−xNixZr2 Reviewed

    Yuto Watanabe, Hiroto Arima, Hidetomo Usui, Yoshikazu Mizuguchi

    Scientific Reports   2023.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    <jats:title>Abstract</jats:title><jats:p>Recently, <jats:italic>c</jats:italic>-axis negative thermal expansion (NTE) was observed in a CoZr<jats:sub>2</jats:sub> superconductor and related transition-metal zirconides. Here, we investigated the structural, electronic, and superconducting properties of Co<jats:sub>1−<jats:italic>x</jats:italic></jats:sub>Ni<jats:sub><jats:italic>x</jats:italic></jats:sub>Zr<jats:sub>2</jats:sub> to achieve systematic control of <jats:italic>c</jats:italic>-axis NTE and switching from NTE to positive thermal expansion (PTE) by Ni substitution. At <jats:italic>x</jats:italic> ≤ 0.3, <jats:italic>c</jats:italic>-axis NTE was observed, and the thermal expansion constant <jats:italic>α</jats:italic><jats:sub><jats:italic>c</jats:italic></jats:sub> approached zero with increasing <jats:italic>x</jats:italic>. At <jats:italic>x</jats:italic> = 0.4–0.6, <jats:italic>c</jats:italic>-axis thermal expansion close to zero thermal expansion (ZTE) was observed, and PTE appeared for <jats:italic>x</jats:italic> ≥ 0.7. On the superconducting properties, we observed bulk superconductivity for <jats:italic>x</jats:italic> ≤ 0.6, and bulk nature of superconductivity is suppressed by Ni heavy doping (<jats:italic>x</jats:italic> ≥ 0.7). For <jats:italic>x</jats:italic> ≤ 0.6, the evolution of the electronic density of states well explains the change in the superconducting transition temperature (<jats:italic>T</jats:italic><jats:sub>c</jats:sub>), which suggests conventional phonon-mediated superconductivity in the system. By analyzing the <jats:italic>c</jats:italic>/<jats:italic>a</jats:italic> ratio, we observed a possible collapsed transition in the tetragonal lattice at around <jats:italic>x</jats:italic> = 0.6–0.8. The lattice collapse would be the cause of the suppression of superconductivity in Ni-rich Co<jats:sub>1−<jats:italic>x</jats:italic></jats:sub>Ni<jats:sub><jats:italic>x</jats:italic></jats:sub>Zr<jats:sub>2</jats:sub> and the switching from NTE to PTE.</jats:p>

    DOI： 10.1038/s41598-023-28291-y

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  • Crystal and electronic structures of BiS2 -based compounds Sr0.5X0.5FBiS2 (X=rare earth) under pressure: Correlation with the change in the superconductivity from unconventional to conventional Reviewed

    Hitoshi Yamaoka, Aichi Yamashita, Yuki Nakahira, Masayuki Ochi, Kazuhiko Kuroki, Hiroto Arima, Kazuyuki Matsubayashi, Hirofumi Ishii, Nozomu Hiraoka, Yoshikazu Mizuguchi

    Physical Review B   2022.11

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevB.106.205122

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  • Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2 Reviewed

    Md Riad Kasem, Hiroto Arima, Yoichi Ikeda, Aichi Yamashita, Yoshikazu Mizuguchi

    Journal of Physics: Materials   2022.10

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    Publishing type：Research paper (scientific journal)  

    <jats:title>Abstract</jats:title>
    <jats:p>We synthesized a new high-entropy-alloy-type (HEA-type) superconductor (Fe,Co,Ni,Cu,Ga)Zr<jats:sub>2</jats:sub> with a <jats:italic>T</jats:italic>
    <jats:sub>c</jats:sub> of 2.9 K. The EDX analyses revealed that the actual composition of the transition-metal site (<jats:italic>Tr</jats:italic>-site) is <jats:italic>Tr</jats:italic> = Fe<jats:sub>0.17(1)</jats:sub>Co<jats:sub>0.18(2)</jats:sub>Ni<jats:sub>0.21(2)</jats:sub>Cu<jats:sub>0.25(1)</jats:sub>Ga<jats:sub>0.19(1)</jats:sub>, which gives the configurational entropy of mixing Δ<jats:italic>S</jats:italic>
    <jats:sub>mix</jats:sub> = 1.60 <jats:italic>R</jats:italic> for the <jats:italic>Tr</jats:italic> site. Neutron powder diffraction revealed that the sample has a tetragonal CuAl<jats:sub>2</jats:sub>-type (space group: #140). The lattice constant of <jats:italic>a</jats:italic> monotonically decreases with decreasing temperature, but the lattice constant of <jats:italic>c</jats:italic> does not exhibit a clear shrinkage. Isotropic displacement parameter for both the <jats:italic>Tr</jats:italic> and Zr sites are large, which is probably caused by the HEA-type <jats:italic>Tr</jats:italic> site. The small temperature dependences of <jats:italic>U</jats:italic>
    <jats:sub>iso</jats:sub> for both sites also indicate the presence of the local structural disorder in (Fe,Co,Ni,Cu,Ga)Zr<jats:sub>2</jats:sub>. From electrical resistivity, magnetic susceptibility, and specific heat measurements, bulk superconductivity was confirmed.</jats:p>

    DOI： 10.1088/2515-7639/ac8e34

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  • Pressure tuning of localization and superconductivity in LaOPbBiS3 and La2⁢O2⁢Bi3⁢AgS6 Reviewed

    Y. Yuan, H. Arima, M. Masaoka, Y. Naito, Y. Hijikata, R. Jha, Y. Mizuguchi, K. Matsubayashi

    Physical Review B   105 ( 6 )   2022.2

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    Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

    DOI： 10.1103/physrevb.105.064509

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.105.064509/fulltext

  • Interplay between Quadrupolar and Magnetic Interactions in 5d1 Double Perovskite Ba2MgReO6 under Pressure Reviewed

    Hiroto Arima, Yoshiaki Oshita, Daigorou Hirai, Zenji Hiroi, Kazuyuki Matsubayashi

    Journal of the Physical Society of Japan   91 ( 1 )   2022.1

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.91.013702

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  • Hybridization-Gap Formation and Superconductivity in the Pressure-Induced Semimetallic Phase of the Excitonic Insulator Ta2NiSe5 Reviewed

    Kazuyuki Matsubayashi, Hidekazu Okamura, Takashi Mizokawa, Naoyuki Katayama, Akitoshi Nakano, Hiroshi Sawa, Tatsuya Kaneko, Tatsuya Toriyama, Takehisa Konishi, Yukinori Ohta, Hiroto Arima, Rina Yamanaka, Akihiko Hisada, Taku Okada, Yuka Ikemoto, Taro Moriwaki, Koji Munakata, Akiko Nakao, Minoru Nohara, Yangfan Lu, Hidenori Takagi, Yoshiya Uwatoko

    Journal of the Physical Society of Japan   90 ( 7 )   074706 - 074706   2021.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.90.074706

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  • Resistive anisotropy of candidate excitonic insulator Ta2NiSe5 under pressure Reviewed

    H Arima, Y Naito, K Kudo, N Katayama, H Sawa, M Nohara, Y F Lu, K Kitagawa, H Takagi, Y Uwatoko, K Matsubayashi

    Journal of Physics: Conference Series   1609 ( 1 )   012001 - 012001   2020.8

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    We have measured anisotropic electrical resistivity of quasi-one-dimensional Ta2NiSe5 single crystals under pressure. While the in-plane anisotropy is almost pressure independent, the inter-plane one greatly decreases at P c ∼ 3 GPa accompanied by a pressure-induced semiconductor-semimetal transition. Nevertheless, a similar anomaly in the temperature dependence of in-plane anisotropy has been observed in each phase. This anomaly in the low-pressure phase below P c is regarded as an excitonic transition, and thus both of these anomalies are suppressed with increasing pressure. These results suggest that the suppression of the excitonic binding energy with pressure is caused by the increase of free carrier densities and the inter-plane conductivity.

    DOI： 10.1088/1742-6596/1609/1/012001

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    Other Link： https://iopscience.iop.org/article/10.1088/1742-6596/1609/1/012001

  • High-Pressure Hall Effect Measurement on Ta2NiSe5 as a Candidate for Excitonic Insulator Reviewed

    Hiroto Arima, Yasushi Naito, Kazuki Kudo, Naoyuki Katayama, Hiroshi Sawa, Minoru Nohara, Yangfan Lu, Kentaro Kitagawa, Hidenori Takagi, Yoshiya Uwatoko, Kazuyuki Matsubayashi

    Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019)   2020.3

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Journal of the Physical Society of Japan  

    DOI： 10.7566/jpscp.30.011031

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Books

  • 固体物理

    松林和幸, 有馬寛人（ Role： Joint author励起子絶縁体から超伝導への高圧力による制御）

    アグネ技術センター  2022.8 

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MISC

  • Pressure-induced volumetric negative thermal expansion in CoZr2 superconductor

    渡邊雄翔, 有馬寛人, 有馬寛人, 河口沙織, 門林宏和, 岡健太, 臼井秀知, 松本凌, 高野義彦, 川幡武, 川島千弦, 高橋博樹, 山下愛智, 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 2 )   2024

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  • Observation of self-heating phenomenon caused by trapped flux in Sn-Pb solder

    村上拓海, 有馬寛人, 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 2 )   2024

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  • Magnetic flux trapping and anomalously large self-heating phenomena in phase-separated superconducting composites

    水口佳一, 村上拓海, RANI Poonam, KASEM Md. Riad, 有馬寛人

    日本物理学会講演概要集(CD-ROM)   79 ( 2 )   2024

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  • Superconducting properties and electronic structure of CuAl2-type transition-metal zirconide Fe1-xNixZr2

    島田竜之介, 島田竜之介, 渡邊雄翔, TORTORA Lorenzo, TOMASSUCCI Giovanni, HACISALIHOGLU Muammer Yasin, HACISALIHOGLU Muammer Yasin, 有馬寛人, 有馬寛人, 山下愛智, 三浦章, 森吉千佳子, SAINI Naurang L., 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 2 )   2024

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  • Effect of annealing in eutectic high-entropy alloy superconductor NbScTiZr

    北川二郎, 関武留, 有馬寛人, 有馬寛人, 川崎佑太, 西嵜照和, 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 1 )   2024

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  • Nonvolatile Magneto-Thermal Switching in Eutectic Alloy Sn-Pb Solders

    有馬寛人, 有馬寛人, KASEM Md. R., SEPEHRI-AMIN H., 安藤冬希, 内田健一, 木下雄斗, 徳永将史, 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 1 )   2024

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  • Anomalous Superconductiug States of Sn Contained in Eutectic Alloy Sn-Pb solder

    村上拓海, 有馬寛人, 水口佳一

    日本物理学会講演概要集(CD-ROM)   79 ( 1 )   2024

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  • Uniaxial negative thermal expansion in transition-metal zirconides

    水口佳一, 有馬寛人

    日本物理学会講演概要集(CD-ROM)   78 ( 1 )   2023

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  • Electrical Resistivity and Anisotropic Compression under High Pressure in Transition Metal Zirconide RhZr2

    有馬寛人, 渡邊雄翔, 山岡人志, 松林和幸, 山下愛智, 水口佳一

    日本物理学会講演概要集(CD-ROM)   78 ( 2 )   2023

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  • Single crystal growth and investigation of f-electron ground state of tetragonal compound LnGa6 (Ln = La-Lu)

    ASIF Afzal MD, 東中隆二, 中村直貴, 大貫惇睦, 大貫惇睦, 有馬寛人, 山下愛智, 水口佳一, 青木勇二, 松田達磨

    日本物理学会講演概要集(CD-ROM)   78 ( 2 )   2023

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  • Superconductivity in In-doped AgPbBiTe3 with NaCl-type structure

    澤原嵩大, 有馬寛人, 片瀬貴義, 山下愛智, 東中隆二, 水口佳一

    日本物理学会講演概要集(CD-ROM)   78 ( 2 )   2023

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  • Tuning of anisotropic thermal expansion of transition-metal zirconide compounds by elemental substitution

    有馬寛人, KASEM Md.Riad, 水口佳一

    日本物理学会講演概要集(CD-ROM)   78 ( 1 )   2023

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  • Magneto-thermal switching characteristics of low-Tc superconductors

    水口佳一, 吉田未来, 有馬寛人, 内田健一

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   84th   2023

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  • Synthesis and Superconducting Properties of (Pt0.2Ir0.8)3Zr5 with a Chiral Crystal Structure

    渡邊雄翔, 有馬寛人, 山下愛智, 三浦章, 森吉千佳子, 後藤陽介, LEE C. H., 東中隆二, 臼井秀知, 水口佳一

    日本物理学会講演概要集(CD-ROM)   78 ( 2 )   2023

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  • Effect of pressure on quadrupolar and magnetic ordering in Ba2MgReO6

    有馬寛人, 大下宜晃, 平井大悟郎, 廣井善二, 松林和幸

    日本物理学会講演概要集(CD-ROM)   77 ( 1 )   2022

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  • High-pressure electrical transport properties of single crystalline BiS2-based layered compounds

    有馬寛人, YUAN Yahua, 成田傑, 工藤一輝, 矢藤優佑, JHA Rajveer, 後藤陽介, 水口佳一, 東中隆二, 松田達麿, 青木勇二, 松林和幸

    日本物理学会講演概要集(CD-ROM)   76 ( 1 )   2021

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  • Hall effect measurement of narrow gap semiconductor Ta2NiS5 under pressure

    有馬寛人, 片山尚幸, 澤博, 野原実, LU Y. F., 北川健太郎, 高木英典, 高木英典, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   76 ( 2 )   2021

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  • Thermoelectric power of YbCo2Zn20 under pressure, low temperature and magnetic field

    工藤一輝, 内藤康氏, 有馬寛人, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   75 ( 1 )   2020

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  • Pressure-induced semiconductor-semimetal transition and superconductivity in BiS2-based layered compounds

    有馬寛人, YUAN Yahua, 内藤康氏, 工藤一輝, 矢藤優佑, JHA Rajveer, 後藤陽介, 水口佳一, 東中隆二, 松田達麿, 青木勇二, 松林和幸

    日本物理学会講演概要集(CD-ROM)   75 ( 2 )   2020

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  • Temperature-pressure phase diagrams of BiS2-based layered compounds

    有馬寛人, YUAN Yahua, 内藤康氏, 工藤一輝, 矢藤優佑, JHA Rajveer, 後藤陽介, 水口佳一, 松田達麿, 青木勇二, 松林和幸

    日本物理学会講演概要集(CD-ROM)   75 ( 1 )   2020

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  • 高圧下におけるTa2NiSe5の輸送特性

    有馬寛人, 内藤康氏, 工藤一輝, 片山尚幸, 澤博, 野原実, LU Y. F., 北川健太郎, 高木英典, 高木英典, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   74 ( 1 )   2019

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  • 高圧下における熱電能測定法の開発とYbCo2Zn20への応用

    工藤一輝, 内藤康氏, 有馬寛人, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   74 ( 2 )   2019

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  • 高圧下における熱電能測定装置の開発

    内藤康氏, 工藤一輝, 有馬寛人, 辺土正人, 松林和幸

    日本物理学会講演概要集(CD-ROM)   74 ( 1 )   2019

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  • LaOBiPbS3およびLa2O2Bi3AgS6における圧力誘起超伝導と高圧下における電気輸送特性

    内藤康氏, 工藤一輝, 有馬寛人, 辺土正人, 水口佳一, JHA Rajveer, 後藤陽介, 松田達磨, 青木勇二, 松林和幸

    日本物理学会講演概要集(CD-ROM)   74 ( 2 )   2019

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  • Ta2NiSe5の相図における静水圧と異方的圧力効果の比較

    有馬寛人, 片山尚幸, 野原実, LU Y.F., 北川健太郎, 高木英典, 高木英典, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   73 ( 2 )   2018

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  • 励起子絶縁体候補物質Ta2NiSe5における高圧下ホール効果

    有馬寛人, 片山尚幸, 野原実, LU Y.F., 高木英典, 高木英典, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   73 ( 1 )   2018

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  • 励起子絶縁体候補物質Ta2NiSe5における高圧下電気抵抗とホール効果

    有馬寛人, 片山尚幸, 野原実, LU Y. F., 高木英典, 高木英典, 上床美也, 松林和幸

    日本物理学会講演概要集(CD-ROM)   72 ( 2 )   2017

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Presentations

  • Anisotropic thermal expansion in transition-metal zirconide superconductors

    H. Arima, Y. Watanabe, T. Inui, A. Yamashita, A. Miura, H. Ito, C. Moriyoshi, H. Fujihisa, Y. Mizuguchi

    TMU Materials Science 2023  2023.6 

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    Event date： 2023.6

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  • Axis thermal expansion switching in transition-metal zirconides superconductors TrZr2 by tuning the c/a ratio

    Hiroto Arima, Md. R. Kasem, Yoshikazu Mizuguchi

    APS March Meeting 2023  2023.3 

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    Event date： 2023.3

    Language：English   Presentation type：Oral presentation (general)  

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  • High-pressure Hall effect measurement on Ta2NiSe5 as a candidate for excitonic insulator

    H. Arima, Y. Naito, K. Kudo, N. Katayama, H. Sawa, M. Nohara, Y. F. Lu, K. Kitagawa, H. Takagi, Y. Uwatoko, K. Matsubayashi

    Strongly Correlated Electron Systems 2019  2019.9 

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    Event date： 2019.9 - 2023.9

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  • Effect of pressure on the quadrupole and magnetic order in cubic double perovskite Ba2MgReO6

    H. Arima, D. Hirai, Z. Hiroi, K. Matsubayashi

    J-Physics 2019 International Conference & KINKEN-WAKATE 2019 Multipole Physics  2019.9 

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    Event date： 2019.9

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  • Resistive anisotropy of candidate excitonic insulator Ta2NiSe5 under pressure

    H. Arima, Y. Naito, K. Kudo, N. Katayama, H. Sawa, M. Nohara, Y. F. Lu, K. Kitagawa, H. Takagi, Y. Uwatoko, K. Matsubayashi

    AIRAPT27th  2019.8 

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    Event date： 2019.8

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  • High-presssure transport properties of candidate material for Excitonic insulator Ta2NiSe5

    H. Arima, N. Katayama, M. Nohara, Y.F. Lu, H. Takagi, Y. Uwatoko, K. Matsubayashi

    International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth（NENCS)  2017.10 

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    Event date： 2017.10

    Language：Japanese   Presentation type：Poster presentation  

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  • 励起子絶縁体候補物質Ta2NiSe5における高圧下電気抵抗とホール効果

    有馬寛人, 片山尚幸, 野原実, 魯楊帆, 高木英典, 上床美也, 松林和幸

    日本物理学会 2017 年秋季大会  2017.9 

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    Event date： 2017.9

    Language：Japanese  

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  • 高圧化におけるTa2NiSe5の輸送特性

    有馬寛人, 内藤康氏, 工藤一輝, 片山尚幸, 澤博, 野原実, 魯楊帆, 北川健太郎, 高木英典, 上床美也, 松林和幸

    日本物理学会 第74回年次大会  2019.3 

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  • 高圧力下・極低温・磁場中におけるYbCo2Zn20の熱電能

    工藤一輝, 内藤康氏, 有馬寛人, 上床美也, 松林和幸

    日本物理学会 第75回年次大会  2020.3 

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  • 高圧下における熱電能測定装置の開発

    内藤康氏, 工藤一輝, 有馬寛人, 辺土正人, 松林和幸

    日本物理学会 第74回年次大会  2019.3 

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  • 高圧下における熱電能測定法の開発とYbCo2Zn20への応用

    工藤一輝, 内藤康氏, 有馬寛人, 上床美也, 松林和幸

    日本物理学会秋季大会  2019.9 

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  • 正方晶化合物LnGa6(Ln=La-Lu)の純良単結晶育成とf電子基底状態の探索

    Afzal MD Asif, 東中隆二, 中村直貴, 大貫惇睦, 有馬寛人, 山下愛智, 水口佳一, 青木勇二, 松田達磨

    日本物理学会 第78回年次大会  2023.9 

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  • 相が分離したSn-Pb合金における磁束トラップの起源の解明

    有馬 寛人, 村上 拓海, 木下 雄斗, Hossein Sepehri-Ami, 徳永 将史, 野島 勉, 水口 佳一

    第86回応用物理学会秋季学術講演会  2025.9 

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  • 相分離Sn-Pb合金におけるSnの超伝導状態

    有馬寛人, 村上拓海, 木下雄斗, Hossein Sepehri-Amin, 徳永将史, 野島勉, 水口佳一

    日本物理学会 第80回年次大会  2025.9 

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  • 相分離系超伝導体Sn-Pbハンダにおけるボルテックス-アンチボルテックスの形成

    有馬寛人, 村上拓海, 木下雄斗, H. Sepehri-Amin, 徳永将史, 野島勉, 水口佳一

    超伝導研究の新潮流  2024.12 

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  • 相分離系超伝導体Sn-Pbハンダにおける渦糸-反渦糸の形成

    有馬寛人, 村上拓海, 木下雄斗, H. Sepehri-Amin, 徳永将史, 野島勉, 水口佳一

    第30回 渦糸物理ワークショップ  2024.12 

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  • 相分離系超伝導体Sn-Pbハンダにおける自己発熱現象

    村上拓海, Poonam Rani, Md. Riad Kasem, 有馬寛人, 水口佳一

    日本物理学会 第79回年次大会  2024.9 

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  • 相分離系超伝導複合材料における磁束トラップと異常自己発熱現象

    水口佳一, 村上拓海, Poonam Rani, Md. Riad Kasem, 有馬寛人

    日本物理学会 第79回年次大会  2024.9 

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  • 縞状加熱を用いた薄膜面内方向熱拡散率計測手法の開発

    山下雄一郎, 有馬寛人, 八木貴志

    第72回応用物理学会春季学術講演会  2025.3 

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  • 縞状加熱を用いた薄膜面内方向熱拡散率計測手法の開発(2) : MoおよびAl膜における面内方向の熱拡散率の評価

    有馬 寛人, 八木 貴志, 山下 雄一郎

    第86回応用物理学会秋季学術講演会  2025.9 

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  • 遷移金属ジルコナイドRhZr2における高圧下電気抵抗と異方的圧縮

    有馬寛人, 渡邊雄翔, 山岡人志, 松林和幸, 山下愛智, 水口佳一

    日本物理学会 第78回年次大会  2023.9 

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  • 遷移金属ジルコナイドにおける異方的格子熱膨張

    水口佳一, 有馬寛人

    日本物理学会 2023年春季大会  2023.3 

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  • 遷移金属ジルコナイド超伝導体CoZr2における高圧下体積負熱膨張の発現

    渡邊雄翔, 有馬寛人, 河口沙織, 門林宏和, 岡健太, 臼井秀知, 松本凌, 高野義彦, 川幡武, 川島千弦, 高橋博樹, 山下愛智, 水口佳一

    日本物理学会 第79回年次大会  2024.9 

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  • 反射型ミラーを用いた面内TDTR測定手法の開発

    有馬寛人, 八木貴志, 山下雄一郎

    第8回フォノンエンジニアリング研究会  2024.5 

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  • 励起子絶縁体候補物質Ta2NiSe5における高圧下ホール効果

    有馬寛人, 片山尚幸, 野原実, 魯楊帆, 北川健太郎, 高木英典, 上床美也, 松林和幸

    日本物理学会 第73回年次大会  2018.3 

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  • 共晶高エントロピー合金超伝導体NbScTiZrにおける熱処理効果

    北川二郎, 関武留, 有馬寛人, 川崎佑太, 西嵜照和, 水口佳一

    日本物理学会2024年春季大会  2024.3 

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  • 共晶合金Sn-Pnハンダを用いた不揮発な磁気熱スイッチング

    有馬寛人, Md. R. Kasem, H. Sepehri-Amin, 安藤冬希, 内田健一, 木下雄斗, 徳永将史, 水口佳一

    第29回 渦糸物理ワークショップ  2023.12 

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  • 共晶合金Sn-Pbハンダにおける不揮発な磁気熱スイッチ現象

    有馬寛人, Md. R. Kasem, H. Sepehri-Amin, 安藤冬希, 内田健一, 木下雄斗, 徳永将史, 水口佳一

    日本物理学会 2024年春季大会  2024.3 

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  • 共晶合金Sn-Pbハンダにおける不揮発な磁気熱スイッチと超伝導特性

    有馬寛人, Md. R. Kasem, H. Sepehri-Amin, 安藤冬希, 内田健一, 木下雄斗, 徳永将史, 水口佳一

    超伝導研究の発展と広がり  2023.12 

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  • 共晶合金Sn-PbハンダにおけるSnの異常な超伝導状態

    村上拓海, 有馬寛人, 水口佳一

    日本物理学会2024年春季大会  2024.3 

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  • 共晶合金 Sn45-Pb55 ハンダの超伝導特性

    村上拓海, 有馬寛人, 水口佳一

    第29回渦糸物理ワークショップ  2023.12 

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  • 元素置換による遷移金属ジルコナイド化合物の異方的熱膨張の制御

    有馬寛人, Md. R. Kasem, 水口佳一

    日本物理学会 2023年春季大会  2023.3 

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  • 低Tc超伝導体における磁気的熱スイッチング特性

    水口佳一, 吉田 未来, 有馬 寛人, 内田 健一

    第84回 応用物理学会 秋季学術講演会  2023.9 

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  • ハイスループットな時間領域サーモリフレクタンス技術の開発

    有馬寛人, 山下雄一郎, 八木貴志

    第85回応用物理学会秋季学術講演会  2024.9 

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  • ナローギャップ半導体Ta2NiS5における高圧力下ホール効果測定

    有馬寛人, 片山尚幸, 澤博, 野原実, 魯楊帆, 北川健太郎, 高木英典, 上床美也, 松林和幸

    日本物理学会 2021年秋季大会  2021.9 

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  • カイラルな結晶構造をもつ(Pt0.2Ir0.8)3Zr5の合成と超伝導特性

    渡邊雄翔, 有馬寛人, 山下愛智, 三浦章, 森吉千佳子, 後藤陽介, 李哲虎C., 東中隆二, 臼井秀知, 水口佳一

    日本物理学会 第78回年次大会  2023.9 

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  • Ta2NiSe5の相図における静水圧と異方的圧力効果の比較

    有馬寛人, 片山尚幸, 野原実, 魯楊帆, 北川健太郎, 高木英典, 上床美也, 松林和幸

    日本物理学会 2018 年秋季大会  2018.9 

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  • Superconductivity in In-doped AgPbBiTe3 compounds synthesized by high-pressure synthesis

    T. Sawahara, H. Arima, T. Katase, A. Yamashita, R. Higashinaka, Y. Mizuguchi

    2023 MRS Fall Meeting and Exhibit  2023.11 

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  • Superconductivity in In-doped AgPbBiTe3

    T. Sawahara, H. Arima, T. Katase, A. Yamashita, R. Higashinaka, Y. Mizuguchi

    Materials Research Meeting 2023 (MRM2023)  2023.12 

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  • Superconducting Properties and Electronic Structure of CuAl2-Type Transition-Metal Zirconide Fe1-xNixZr2

    R. Shimada, Y. Watanabe, L. Tortora, G. Tomassucci, M. Hacisali, hoglu, H. Arima, A. Yamashita, A. Miura, C. Moriyoshi, N. L. Saini, Y. Mizuguchi

    2024 MRS Fall Meeting Exhibit  2024.12 

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  • Magnetic-flux trapping and self-heating phenomenon in phase-separated superconducting composite: Sn-Pb solders and new materials

    Y. Mizuguchi, T. Murakami, P. Rani, H. Arima

    2024 MRS Fall Meeting Exhibit  2024.12 

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  • Magnetic-Flux Trapping and Related Phenomena in Sn-Pb Solders

    T. Murakami, P. Rani, H. Arima, Y. Mizuguchi

    2024 MRS Fall Meeting Exhibit  2024.12 

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  • Low-temperature Chiral Crystal Structure and Superconductivity in (Pt0.2Ir0.8)3Zr5

    Y. Watanabe, H. Arima, A. Yamashita, A. Miura, C. Moriyoshi, Y. Goto, C. H. Lee, R. Higashinaka, H., Usui, Y. Mizuguchi

    Materials Research Meeting 2023 (MRM2023)  2023.12 

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  • Low-temperature Chiral Crystal Structure and Superconductivity in (Pt0.2Ir0.8)3Zr5

    Y. Watanabe, H. Arima, A. Yamashita, A. Miura, C. Moriyoshi, Y. Goto, C. H. Lee, R. Higashinaka, H. Usui, Y. Mizuguchi

    2023.11 

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  • LaOBiPbS3およびLa2O2Bi3AgS6における圧力誘起超伝導と高圧下における電気輸送特性

    内藤康氏, 工藤一輝, 有馬寛人, 辺土正人, Rajveer Jha, 後藤陽介, 松田達磨, 青木勇二, 水口佳一, 松林和幸

    日本物理学会秋季大会  2019.9 

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  • High-Throughput Time-Domain Thermoreflectance Method with Machine Learning Assisted Data Analysis

    H. Arima, Y. Yamashita, T. Yagi

    第9回フォノンエンジニアリング研究会  2025.5 

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  • Development of time domain thermoreflectance method with striped pattern heating and beam offset techniques for in-plane thermal diffusivity of thin films

    Y. Yamashita, H. Arima, T. Yagi

    The 41st International and 7th Asian Conference on Thermoelectrics  2025.6 

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  • CuAl2型遷移金属ジルコナイドFe1-xNixZr2の超伝導特性と電子状態

    島田竜之介, 渡邊雄翔, Lorenzo Tortora, Giovanni Tomassucci, Muammer Yasin Hacisalihoǧlu, 有馬寛人, 山下愛智, 三浦章, 森吉千佳子, Naurang L. Saini, 水口佳一

    日本物理学会 第79回年次大会  2024.9 

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  • BiS2系類縁化合物における圧力誘起超伝導

    松林和幸, 有馬寛人, YAHUA Yuan, 内藤康氏, JHA Rajveer, 後藤陽介, 水口佳一, 松田達麿, 青木勇二

    第61回高圧討論会  2020.12 

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  • BiS2系層状化合物の温度-圧力相図

    有馬寛人, Y. Yuan, 内藤康氏, 工藤一輝, 矢藤優佑, Rajveer Jha, 後藤陽介, 水口佳一, 松田達麿, 青木勇二, 松林和幸

    日本物理学会 第75回年次大会  2020.3 

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  • BiS2系層状化合物の単結晶試料における高圧力下電気伝導測定

    有馬寛人, Y. Yuan, 成田傑, 工藤一輝, 矢藤優佑, Rajveer Jha, 後藤陽介, 水口佳一, 東中隆二, 松田達麿, 青木勇二, 松林和幸

    日本物理学会 第76回年次大会  2021.3 

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  • BiS2系層状化合物における圧力誘起半導体-半金属転移と超伝導

    有馬寛人, Y. Yuan, 内藤康氏, 工藤一輝, 矢藤優佑, Rajveer Jha, 後藤陽介, 水口佳一, 東中隆二, 松田達麿, 青木勇二, 松林和幸

    日本物理学会 2020年秋季大会  2020.9 

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  • Ba2MgReO6における四極子秩序と磁気秩序の圧力効果

    有馬寛人, 大下宜晃, 平井大悟郎, 廣井善二, 松林和幸

    日本物理学会 第77回年次大会  2022.3 

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  • 岩塩型金属テルライド AgPbBiTe3 のInドープ超伝導

    澤原嵩大, 有馬寛人, 片瀬貴義, 山下愛智, 東中隆二, 水口佳一

    日本物理学会 第 78 回年次大会  2023.9 

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Industrial property rights

  • 熱膨張性を制御した遷移金属ジルコナイド及びその設計方法

    水口 佳一, 有馬 寛人

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    Applicant：東京都公立大学法人

    Application no：特願2022-167834  Date applied：2022.10

    Announcement no：特開2024-060458  Date announced：2024.5

    J-GLOBAL

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  • 不揮発性磁気熱スイッチ材料

    水口佳一, 有馬寛人, カセム モハマド リアド, 内田健一, 安藤冬希, セペリ アミン ホセイン

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    Application no：特願2023-216292 

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Awards

  • 超伝導分科会研究奨励賞

    2025.3   応用物理学会 超伝導分科会   Observation of nonvolatile magnetothermal switching in superconductors

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  • 目黒会賞

    2019.3   電気通信大学  

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  • 学長賞

    2016.3   電気通信大学  

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  • 学長賞

    2015.3   電気通信大学  

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Research Projects

  • 相分離系超伝導体Sn－Pbハンダにおける高性能な不揮発な磁気熱スイッチの開発

    Grant number：24K23040  2024.7 - 2026.3

    日本学術振興会  科学研究費助成事業  研究活動スタート支援

    有馬 寛人

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    Grant amount：\2860000 （ Direct Cost: \2200000 、 Indirect Cost：\660000 ）

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  • 遷移金属ジルコナイド超伝導体を用いたゼロ熱膨張材料の開発

    2023.10 - 2024.12

    服部報公会  財団助成金 

    有馬寛人

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    Authorship：Principal investigator  Grant type：Competitive

    Grant amount：\1000000

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Teaching Experience

  • 基礎科学実験A

    2023.4 - 2023.8 Institution：電気通信大学

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  • 基礎科学実験A

    2022.4 - 2022.8 Institution：電気通信大学

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Social Activities

  • お菓子の箱で分光器を作ってみよう

    Role(s)： Lecturer

    日本物理学会、日本物理教育学会、国立科学博物館  2023.8

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    Type：Seminar, workshop

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  • 圧力が切り開く物質の世界

    Role(s)： Lecturer

    一般財団法人数理科学振興会、創才セミナー岩国実行委員会  2019.8

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    Type：Seminar, workshop

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  • 高圧下で明らかとなる物質の個性

    Role(s)： Lecturer

    一般財団法人数理科学振興会、創才セミナー岩国実行委員会  2018.8

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    Type：Seminar, workshop

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