Centers & Labs

RIKEN Center for Emergent Matter Science

Strong Correlation Physics Research Group

Group Director: Yoshinori Tokura (D.Eng.)
Yoshinori  Tokura(D.Eng.)

Our group investigates a variety of emergent phenomena in strongly correlated electron systems, which cannot be understood within the framework of conventional semiconductor/metal physics, to construct a new scheme for the relevant science. In particular, we focus on transport and optical properties in non-trivial spin/orbital structures, aiming at clarifying the correlation between the responses and spin/orbital state. In addition, we investigate electron systems with strong spin-orbit interaction, unraveling its impact on transport phenomena and other electronic properties.

Main Research Field


Related Research Fields

Materials Sciences

Research Subjects

  • Mottronics
  • Magnetoelectric effects
  • Topological electronics

Selected Publications

  1. Yamamoto, A., Takeshita, N., Terakura, C., and Tokura, Y.:
    "High-pressure Effects Revisited for the Cuprate Superconductor Family with Highest Critical Temperature"
    Nature Communications 6, 8990 (2015)
  2. Mogi, M., Yoshimi, R., Tsukazaki, A., Yasuda, K., Kozuka, Y., Takahashi, K. S., Kawasaki, M. and Tokura, Y.:
    "Magnetic Modulation Doping in Topological Insulators toward Higher-temperature Quantum Anomalous Hall Effect"
    Applied Physics Letters 107, 182401 (2015)
  3. Ma, E. Y., Cui, Y.-T., Ueda, K., Tang, S., Chen, K., Tamura, N., Wu, P. M., Fujioka, J., Tokura, Y., and Shen, Z.-X.:
    "Mobile Metallic Domain Walls in an All-in-all-out Magnetic Insulator"
    Science 350, 538 (2015)
  4. Yoshimi, R., Yasuda, K., Tsukazaki, A., Takahashi, K. S., Nagaosa, N., Kawasaki, M. and Tokura, Y.:
    "Quantum Hall States Stabilized in Semi-magnetic Bilayers of Topological Insulator"
    Nature Communications 6, 8530 (2015)
  5. Kurumaji, T., Ishiwata, S., and Tokura, Y.:
    "Doping-Tunable Ferrimagnetic Phase with Large Linear Magnetoelectric Effect in a Polar Magnet Fe2Mo3O8"
    Physical Review X 5, 031034 (2015)
  6. Tanigaki, T., Shibata, K., Kanazawa, N., Yu, X. Z., Onose, Y., Park, H. S., Shindo, D., and Tokura, Y.:
    “Real-Space Observation of Short-Period Cubic Lattice of Skyrmions in MnGe”
    Nano Letters 15, 5438 (2015)
  7. Ogawa, N., Koshibae, W., Beekman, A. J., Nagaosa, N., Kubota, M., Kawasaki, M. and Tokura, Y.:
    "Photodrive of Magnetic Bubbles via Magnetoelastic Waves"
    Proceedings of the National Academy of Sciences USA 112, 8977 (2015)
  8. Tokunaga, Y., Yu, X.Z., White, J. S., Rønnow, H. M., Morikawa, D., Taguchi, Y., and Tokura, Y.:
    "A New Class of Chiral Materials Hosting Magnetic Skyrmions Beyond Room Temperature"
    Nature Communications 6, 7638 (2015)
  9. Shibata, K., Iwasaki, J., Kanazawa, N., Aizawa, S., Tanigaki, T., Shirai, M., Nakajima, T., Kubota, M., Kawasaki, M., Park, H. S., Shindo, D., Nagaosa, N., and Tokura, Y.:
    "Large Anisotropic Deformation of Skyrmions in Strained Crystal"
    Nature Nanotechnology 10, 589 (2015)
  10. Yu, X. Z., Tokunaga, Y., Kaneko, Y., Zhang, W. Z., Kimoto, K., Matsui, Y., Taguchi, Y., and Tokura, Y.:
    "Biskyrmion States and Their Current-Driven Motion in a Layered Manganite"
    Nature Communications 5, 3198 (2014)

Lab Members

Principal Investigator

Yoshinori Tokura
Group Director

Core Members

Xiuzhen Yu
Senior Scientist
Yoshio Kaneko
Senior Technical Scientist
Chieko Terakura
Technical Scientist
Yasuo Endoh
Research Consultant
Manabu Kamitani
Postdoctoral Researcher
Takashi Kurumaji
Special Postdoctoral Researcher
Izumi Hirabayashi
Senior Visiting Scientist
Masakazu Ichikawa
Senior Visiting Scientist
Yoshio Matsui
Senior Visiting Scientist
Yasushi Ogimoto
Senior Visiting Scientist
Mari Ishida
Technical Staff I

Contact information

Frontier Research Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Email: tokura [at]

Related links

Recent research results

February 3, 2017: RIKEN RESEARCH
Magnetic bubbles pop up
November 18, 2016: RIKEN RESEARCH
Switched-on skyrmions
January 29, 2016: RIKEN RESEARCH
A better foundation for 3D memory
October 9, 2015: RIKEN RESEARCH
Magnetic material feels the strain
July 2, 2015: Press Release
Evidence for stable room-temperature skyrmions
April 14, 2015: Press Release
Quantization of “surface Dirac states” could lead to exotic applications