Ibaraki University's
Graduate School of Science and Engineering (Science)
Department of Science (Physics Course)

Associate Professor



  1. 日本学術振興会特別研究員(DC1) 2000/04-2003/03
  2. 茨城大学理学部自然機能科学科助手 2003/04-2005/03
  3. 茨城大学理学部理学科助教授 2005/04-2007/03
  4. 茨城大学理学部理学科准教授 2007/04-Present

Academic background

  1. Hokkaido University Faculty of Science Physics 1998 Graduated
  2. Hokkaido University Graduate School of Science Physiscs Master course 2000 Completed
  3. Hokkaido University Graduate School of Science Physiscs Doctor later 2003 Completed

Academic degrees

  1. Doctor(Science) Hokkaido University
  2. Master(Science) Hokkaido University

Research Areas

  1. 低温磁性、強相関電子系の物性

Subject of research

  1. Physics on strongly correlated electron system 1998-Present


  1. Research paper (scientific journal) Joint Observation of a new field-induced phase transition and its concomitant quantum critical fluctuations in CeCo(In1-xZnx)5 M. Yokoyama, H. Mashiko, R. Otaka, Y. Oshima, K. Suzuki, K. Tenya, Y. Shimizu, A. Nakamura, D. Aoki, A. Kondo, K. Kindo, S. Nakamura, and T. Sakakibara Phys. Rev. B 95, 224425-1-224425-5 2017
  2. Research paper (scientific journal) Correlation effect in Sr1-xLaxRuO3 studied by soft x-ray photoemission spectroscopy I. Kawasaki, Y. Sakon, S.-i. Fujimori, H. Yamagami, K. Tenya, and M. Yokoyama Phys. Rev. B 94, 174427-1-174427-7 2016
  3. Research paper (scientific journal) Joint Enhancement of ferromagnetism by oxygen isotope substitution in strontium ruthenate SrRuO3 H. Kawanaka, Y. Aiura, T. Hasebe, M. Yokoyama, T. Masui, Y. Nishihara, and T. Yanagisawa Scientific Reports 6, 35150-1-35150-6 2016
  4. Research paper (scientific journal) Joint Superconductivity and Non-Fermi-Liquid Behavior in the Heavy-Fermion Compound CeCo1-xNixIn5 R. Otaka, M. Yokoyama, H. Mashiko, T. Hasegawa, Y. Shimizu, Y. Ikeda, K. Tenya, S. Nakamura, D. Ueta, H. Yoshizawa, and T. Sakakibara J. Phys. Soc. Jpn. 85, 094713-1-094713-7 2016
  5. Research paper (scientific journal) Joint Muon Spin Relaxation and Neutron Diffraction Studies of Cluster-Glass States in Sr1-xLaxRuO3 I. Kawasaki, K. Fujimura, I. Watanabe, M. Avdeev, K. Tenya and M. Yokoyama J. Phys. Soc. Jpn. 85, 054701-1-054701-8 2016

Research presentations

  1. Poster presentation Field-induced antiferromagnetic order and its quantum critical fluctuations in CeCo(In1-xZnx)5 International Conference on Magnetism ICM2018 2018
  2. Poster presentation Thermal Conductivity of Heavy-Fermion Superconductor CeCo(In1-xZnx)5 International Conference on Magnetism ICM2018 2018
  3. Poster presentation Non-Fermi-liquid behavior in heavy-fermion compound CeCo1-xNixIn5 International Conference on Magnetism ICM2018 2018
  4. Oral presentation(general) Ce(Co1-xNix)In5 における量子臨界揺らぎ 日本物理学会第73 回年次大会 2018
  5. Oral presentation(general) Zn 置換CeCoIn5 におけるNQR/NMR 研究 日本物理学会第73 回年次大会 2018

Memberships of academic societies

  1. The Japanese Society for Neutron Science
  2. The Physical Society of Japan
  3. International Society for μSR Spectroscopy