YOKOYAMA Makoto

ヨコヤママコト | YOKOYAMA Makoto

Affiliation and department：
Job title： Professor
Homepage URL (1)： https://ltphys.sci.ibaraki.ac.jp/

Research field (1)： Magnetism, superconductivity, and strongly correlated systems

Research theme for competitive and other funds (12)：

2023 - 2026 エキゾチック超伝導および非フェルミ液体異常をもたらす量子臨界状態の包括的理解
2023 - 2024 極低温無冷媒冷凍機で比熱を測定するための技術指導
2020 - 2023 Research on the mechanism of exotic superconductivity coupled with quantum critical fluctuations
2017 - 2021 Interplay between unusual superconducting critical field and magnetic correlation in Pauli-limited superconductors
2013 - 2016 Analysis on the multiphase diagram of spin-triplet superconductivity by micromagnetization measurements

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Papers (98)：

Azumi Yashiro, Rahmanto, Kaketo Inami, Kohei Suzuki, Kaede Inoh, Teppei Takahashi, Ryosuke Koizumi, Yohei Kono, Shunichiro Kittaka, Yusei Shimizu, et al. Quantum criticality linked to the suppressed superconducting upper critical field in Ni-doped CeCoIn5. Physical Review Materials. 2024. 8. 8. L081801-1-L081801-6
S. Kittaka, Y. Kono, K. Tsunashima, D. Kimoto, M. Yokoyama, Y. Shimizu, T. Sakakibara, M. Yamashita, and K. Machida. Modulation vector of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 revealed by high-resolution magnetostriction measurements. Physical Review B. 2023. 107. L220505-1-L220505-6
K. Iwasa, K. Suyama, S. Ohira-Kawamura, K. Nakajima, S. Raymond, P. Steffens, A. Yamada, T. D. Matsuda, Y. Aoki, I. Kawasaki, et al. Weyl-Kondo semimetal behavior in the chiral structure phase of Ce3Rh4Sn13. Physical Review Materials. 2023. 7. 1. 014201-1-014201-11
H. Sakai, Y. Tokunaga, S. Kambe, J.-X. Zhu, F. Ronning, J. D. Thompson, H. Kotegawa, H. Tou, K. Suzuki, Y. Oshima, et al. Nested antiferromagnetic spin fluctuations and non-Fermi-liquid behavior in electron-doped CeCo1-xNixIn5. Physical Review B. 2022. 106. 23. 235152-1-235152-8
W. Higemoto, M. Yokoyama, T. U. Ito, T. Suzuki, S. Raymond, and Y. Yanase. Direct measurement of the evolution of magnetism and superconductivity toward the quantum critical point. Proceedings of the National Academy of Sciences of the United States of America. 2022. 119. 49. e2209549119-1-e2209549119-6

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MISC (117)：

鈴木康平, 横山淳, 大島佳樹, 天谷健一, 近藤晃弘, 金道浩一, 中村翔太, 橘高俊一郎, 榊原俊郎. Ce(Co_1-xNi_x)In₅における量子臨界揺らぎ. 日本物理学会講演概要集(CD-ROM). 2018. 73. 1. ROMBUNNO.24pK504-6
酒井宏典, 服部泰佑, 徳永陽, 神戸振作, RONNING Filip, ZHU Jianxin, 鈴木康平, 大島佳樹, 横山淳. Zn置換CeCoIn₅におけるNQR/NMR研究. 日本物理学会講演概要集(CD-ROM). 2018. 73. 1. ROMBUNNO.24pK504-2-2279
Sakon Y., Kawasaki I., Yokoyama M., Fujimori S.-i., Yamagami H. 21aPS-45 Study on resonant photoemission spectroscopy for itinerant ferromagnet Sr_<1-x>La_xRuO_3. Meeting Abstracts of the Physical Society of Japan. 2016. 71. 2240-2240
Otaka R., Yokoyama M., Mashiko H., Tenya K., Ikeda Y., Shimizu Y., Kono Y., Yoshizawa H., Sakakibara T. 20pPSB-6 Low-temperature properties of heavy-fermion superconductor Ce(Co1_<1-x>Ni_x)In_5. Meeting Abstracts of the Physical Society of Japan. 2016. 71. 2111-2111
Hasebe Takayuki, Yokoyama Makoto. Spin dynamics in itinerant ferromagnet Sr_1-xLa_xRuO₃. Meeting Abstracts of the Physical Society of Japan. 2016. 71. 2215-2215

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Lectures and oral presentations (108)：

重い電子超伝導体CeCoIn5のNi 置換系における量子臨界点
(東北大学金属材料研究所大洗・アルファ合同研究会 2024)
Zn置換したCeCoIn5の超伝導相内における反強磁性秩序
(日本物理学会第79回年次大会 2024)
比熱や磁化から見るNi置換系CeCoIn5の零磁場量子臨界点
(日本物理学会第79回年次大会 2024)
CaRuO3のLa0.5K0.5イオン置換系における非フェルミ液体状態と磁気相関の関連
(日本物理学会第79 回年次大会 2024)
ホール抵抗測定で見た重い電子系超伝導体CeCo1-xNixIn5の量子臨界揺らぎ
(日本物理学会第79 回年次大会 2024)

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Education (3)：

Professional career (2)：

Work history (6)：

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Committee career (5)：

Association Membership(s) (3)：

American Physical Society , International Society for μSR Spectroscopy , The Physical Society of Japan

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