Yuki SHIOMI

Assistant Professor, Institute for Materials Research, Tohoku University

Topics of Research：: spin pumping into topological insulators

　
■ Description of Research [1030KB]

RESEARCH

The main research interest is the physics of topological spin current. We studied anomalous and topological Hall effects related with Berry phase in itinerant magnets (Ph.D. thesis work). In this project, we pursue novel spin-related phenomena on surface states of topological insulators in terms of spintronics. By means of spin pumping, which is a technique of spin injection, we aim to achieve an important milestone in the realization of topological-insulator devices.

Figure: schematic illustration of spin injection into topological surface states

EDUCATION

2007: B.Sc. in Engineering, University of Tokyo
2009: M.S. in Engineering, University of Tokyo
2012: Ph.D. in Engineering, University of Tokyo (Advisors: Yoshinori Tokura)

PROFESSIONAL EXPERIENCE

2012-2013: Assistant Professor, WPI-AIMR, Tohoku University
2013-Present: Assistant Professor, Institute for Materials Research, Tohoku University

SELECTION OF PUBLICATIONS

"Emergence of topological Hall effect from fanlike spin structure as modified by Dzyaloshinsky-Moriya interaction in MnP" (Editor's suggestion),
Y. Shiomi, S. Iguchi, and Y. Tokura
Phys. Rev. B 86, 180404(R) (2012)

"Hall effect of spin-chirality origin in a triangular-lattice helimagnet Fe1.3Sb",
Y. Shiomi, M. Mochizuki, Y. Kaneko and Y. Tokura
Phys. Rev. Lett. 108, 056601 (2012)

"Observation of the Magnon Hall Effect",
Y. Onose, T. Ideue, H. Katsura, Y. Shiomi, N. Nagaosa and Y. Tokura
Science 329, 297 (2010)

"Effect of scattering on intrinsic anomalous Hall effect investigated by Lorenz ratio" (Editor's suggestion, highlighted in Physics),
Y. Shiomi, Y. Onose and Y. Tokura
Phys. Rev. B. 81, 054414 (2010)

" Extrinsic anomalous Hall effect in charge and heat transport in pure iron, Fe0.997Si0.003, and Fe0.97Co0.03",
Y. Shiomi, Y. Onose and Y. Tokura
Phys. Rev. B. 79, 100404(R) (2009)