Takehito YOKOYAMA
Assistant Professor, Department of Physics, Tokyo Institute of Technology condensed matter physics (Theory)- Topics of Research：
- Spintronics in ferromagnet/superconductor junctions
■ Laboratory Website
■ Description of Research
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RESEARCH
I've studied superconductivity in systems without translational symmetry, in particular, superconducting junctions. I'm also interested in spin related phenomena in superconducting systems, such as proximity effect in ferromagnet/superconductor junctions. My recent main interest is topological insulator.
In this project, I will investigate spintronics effects in ferromagnet/superconductor junctions. In particular, I will pursue novel coupling between spin, charge and phase degrees of freedom in triplet superconductivity induced in the ferromagnet. I also would like to study topological insulators/superconductors. My goal is to deepen the understanding of topological phenomena.
EDUCATION
- 2008
- Ph.D. (Engineering), Nagoya University
PROFESSIONAL EXPERIENCE
- 2006-2010
- Research Fellow, Japan Society for the Promotion of Science
- 2010-Present
- Assistant professor, Department of Physics, Tokyo Institute of Technology
HONORS AND AWARDS
- 2011
- Young Scientist Award of the Physical Society of Japan (2011)
SELECTION OF PUBLICATIONS
"Anomalous Meissner Effect in a Normal-Metal-Superconductor Junction with a Spin-Active Interface",
T. Yokoyama, Y. Tanaka, and N. Nagaosa,
Phys. Rev. Lett. 106, 246601 (2011)
"Theoretical study of the dynamics of magnetization on the topological surface",
T. Yokoyama, J. Zang, and N. Nagaosa
Phys. Rev. B 81, 241410(R) (2010)
"Anomalous magnetoresistance of a two-dimensional ferromagnet/ferromagnet junction on the surface of a topological insulator",
T. Yokoyama, Y. Tanaka, and N. Nagaosa
Phys. Rev. B 81, 121401(R) (2010)
"Giant Spin Rotation in the Junction between a Normal Metal and a Quantum Spin Hall System",
T. Yokoyama, Y. Tanaka, and N. Nagaosa
Phys. Rev. Lett. 102, 166801 (2009)
"Theory of pairing symmetry inside the Abrikosov vortex core",
T. Yokoyama, Y. Tanaka, and A. A. Golubov
Phys. Rev. B 78, 012508 (2008)
"Manifestation of the odd-frequency spin-triplet pairing state in diffusive ferromagnet/superconductor junctions",
T. Yokoyama, Y. Tanaka, and A. A. Golubov
Phys. Rev. B 75, 134510 (2007)
