RIKEN Center for Emergent Matter Science Strong Correlation Quantum Transport Research Team
Team Leader: Yoshinori Tokura (D.Eng.)
Research Summary
We aim to study various quantum transport phenomena which emerge in thin films, hetero-interfaces, and bulk samples. Specifically, we try to clarify the effects of spin-orbit interaction on the transport phenomena in the systems with broken inversion-symmetry, and electron transport in non-trivial spin textures, through the transport measurements under low temperature and high magnetic-field conditions. Unconventional superconductors are also investigated by means of resistivity measurement under high pressure as well as THz spectroscopy.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Interdisciplinary Science & Engineering
- Engineering
Keywords
- strongly correlated electrons system
- colossal magnetoresistance
- high-temperature superconductors
- multiferroics
- topological insulators
Selected Publications
- 1.
Birch, T. M., Belopolski, I., Fujishiro, Y., Kawamura, M., Kikkawa, A., Taguchi, Y., Hirschberger, M., Nagaosa, N., and Tokura, Y.:
"Dynamic transition and Galilean relativity of current-driven skyrmions"
Nature, 633, 554 (2024). - 2.
Sato, Y., Nagahama, S., Belopolski, I., Yoshimi, R., Kawamura, M., Tsukazaki, A., Kanazawa, N., Takahashi, K. S., Kawasaki, M., and Tokura, Y.:
"Molecular beam epitaxy of superconducting FeSexTe1−x thin films interfaced with magnetic topological insulators"
Phys. Rev. Mater. 8, L041801 (2024). - 3.
Kawamura, M., Mogi, M., Yoshimi, R., Morimoto, T., Takahashi, K. S., Tsukazaki, A., Nagaosa, N., Kawasaki, M., and Tokura, Y.:
"Laughlin charge pumping in a quantum anomalous Hall insulator"
Nat. Phys. 19, 333 (2023) - 4.
Mogi, M., Okamura, Y., Kawamura, M., Yoshimi, R., Yasuda, K., Tsukazaki, A., Takahashi, K. S., Morimoto, T., Nagaosa, N., Kawasaki, M., Takahashi, Y., and Tokura, Y.:
"Experimental signature of the parity anomaly in a semi-magnetic topological insulator"
Nat. Phys.,18, 390 (2022) - 5.
Yasuda, K., Morimoto, T., Yoshimi, R., Mogi, M., Tsukazaki, A., Kawamura, M., Takahashi, K. S., Kawasaki, M., Nagaosa, N., and Tokura, Y.:
"Large non-reciprocal charge transport mediated by quantum anomalous Hall edge states",
Nat. Nanotechnol., 15, 831 (2020) - 6.
Yasuda, K., Yasuda, H., Liang, T., Yoshimi, R., Tsukazaki, A., Takahashi, K. S., Nagaosa, N., Kawasaki, M., and Tokura, Y.:
"Nonreciprocal charge transport at topological insulator/superconductor interface"
Nat. Commun., 10, 2734 (2019). - 7.
Yoshimi, R., Yasuda, K., Tsukazaki, A., Takahashi, K. S., Kawasaki, M., and Tokura, Y.:
"Current-driven magnetization switching in ferromagnetic bulk Rashba semiconductor (Ge, Mn) Te",
Sci. Adv., 4, eaat9989 (2018). - 8.
Mogi, M., Kawamura, M., Yoshimi, R., Tsukazaki, A., Kozuka, Y., Shirakawa, N., Takahashi, K. S., Kawasaki, M., and Tokura, Y.:
"A magnetic heterostructure of topological insulators as a candidate for an axion insulator"
Nat. Mater. 16, 516-521 (2017). - 9.
Yasuda, K., Mogi, M., Yoshimi, R., Tsukazaki, A., Takahashi, K. S., Kawasaki, M., Kagawa, F., and Tokura, Y.:
"Quantized chiral edge conduction on domain walls of a magnetic topological insulator"
Science, 358, 1311 (2017). - 10.
Yasuda, K., Tsukazaki, A., Yoshimi, R., Takahashi, K.S., Kawasaki, M., and Tokura, Y.:
"Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator"
Phys. Rev. Lett. 117, 127202 (2016).
Recent Research Results
-
Apr. 18, 2023
Why exotic states of matter don’t need edges -
Dec. 13, 2019
A new way to induce the quantum anomalous Hall effect -
Oct. 9, 2015
Characterizing electrons in the smallest devices
Related Links
Lab Members
Principal investigator
- Yoshinori Tokura
- Team Leader
Core members
- Ilya Belopolski
- Research Scientist
- Max Birch
- Special Postdoctoral Researcher
- Lixuan Tai
- Postdoctoral Researcher
Contact Information
Frontier Research Laboratory, 2-1 Hirosawa, Wako,
Saitama 351-0198, Japan
Email: tokura@riken.jp