RIKEN Center for Emergent Matter Science Emergent Spintronics Research Team

Team Leader: Eiji Saitoh (Ph.D.)

Japanese Page

Research Summary

Our research team is conducting research on various quantum spintronics phenomena in nanoscale shape-controlled composite structures of magnetic materials, inorganic and organic semiconductors, and superconductors. Focusing on quantum spin dynamics, spin transport, and the interaction between spin and macroscopic order parametons, we are conducting experiments using methods such as transport measurements, optical measurements, and ultralow temperature microwave spectroscopy. Through this research, we aim to extend spintronics to the quantum domain, construct a fundamental physics system, and apply it to information processing and energy conversion.

Main Research Fields

Mathematical & Physical Sciences

Related Research Fields

Engineering
Interdisciplinary Science & Engineering
Condensed matter physics and related fields
Applied condensed matter physics and related fields
Nano/micro science and related fields

Keywords

spintronics
energy conversion
quantum device
quantum information
machine learning physics

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

1. *Saitoh, E., Ueda, M., Miyajima, H., and Tatara, G.:
"Conversion of spin current into charge current at room temperature: inverse spin-Hall effect"
Applied Physics Letters 88 182509 (2006).
2. *Ando, K., Takahashi, S., Harii, K., Sasage, K., Ieda, J., Maekawa, S., and Saitoh, E.:
"Electric manipulation of spin relaxation using spin-Hall effect"
Physical Review Letters 98 036601 (2008).
3. *Uchida, K., Takahashi, S., Harii, K., Ieda, J., Koshibae, W., Ando, K., Maekawa, S., and Saitoh, E.:
"Observation of the spin Seebeck effect"
Nature 455 778-781 (2008).
4. *Kajiwara, Y., Harii, K., Takahashi, S., Ohe, J., Uchida, K., Mizuguchi, M., Umezawa, H., Kawai, H., Ando, K., Takanashi, K., Maekawa, S., and Saitoh, E.:
"Transmission of electrical signals by spin-wave interconversion in a magnetic insulator"
Nature 464 262-266 (2010).
5. *Takahashi, R., Matsuo, M., Ono, M., Harii, K., Chudo, H., Okayasu, S., Ieda, J., Takahashi, S., Maekawa, S., and Saitoh, E.:
"Spin hydrodynamic generation"
Nature Physics 12 52-56 (2015).
6. *Hirobe, D., Sato, M., Kawamata, T., Shiomi, Y., Uchida, K., Iguchi, R., Koike, Y., Maekawa, S., and Saitoh, E.:
"One-dimensional spinon spin currents"
Nature Physics 13 20-34 (2017).
7. *Uchida, K., Daimon, S., Iguchi, R., and Saitoh, E.:
"Observation of anisotropic magneto-Peltier effect in nickel"
Nature 558 95-99 (2018).
8. *Shiomi, Y., Lustikova, J., Watanabe, S., Hirobe, D., Takahashi S., and Saitoh, E.:
"Spin pumping from nuclear spin waves"
Nature Physics 15 22-26 (2019).
9. *Kikkawa, T., Reitz, D., Ito, H., Makiuchi, T., Sugimoto, T., Tsunekawa, K., Daimon, S., Oyanagi, K., Ramos, R., Takahashi, S., Shiomi, Y., Tserkovnyak Y., and Saitoh, E.:
"Observation of nuclear-spin Seebeck effect"
Nature Communications 12 4356 (2021).
10. *Daimon, S., Tsunekawa, K., Kawakami, S., Kikkawa, T., Ramos, R., Oyanagi, K., Ohtsuki T., and Saitoh, E.:
"Deciphering quantum fingerprints in electric conductance"
Nature Communications 13 3160 (2022).

Lab Members

Principal investigator

Eiji Saitoh: Team Leader

Contact Information

Frontier Research Laboratory
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: eiji.saitoh [at] riken.jp