Kazuaki Takasan   Masahiro Sato   
Physical Review B (Rapid Communications) 100(6) 060408(R) 2019年8月 [査読有り]
We theoretically propose a new route to control magnetic and topological<br />
orders in a broad class of insulating magnets with a DC electric field. We show<br />
from the strong-coupling expansion that magnetic exchange interactions along<br />...
Hiroaki Ishizuka   Masahiro Sato   
Physical Review Letters 122 197702 2019年5月 [査読有り]
We theoretically propose a method of rectifying spin current with a<br />
linearly-polarized electromagnetic wave in inversion-asymmetric magnetic<br />
insulators. To demonstrate the proposal, we consider quantum spin chains as a<br />
simple exa...
Sho Higashikawa   Hiroyuki Fujita   Masahiro Sato   
2018年10月
We develop the Floquet-Magnus expansion for a classical equation of motion<br />
under a periodic drive that is applicable to both isolated and open systems.<br />
For classical systems, known approaches based on the Floquet theorem fail due<br />...
Hiroyuki Fujita   Masahiro Sato   
Scientific Reports 8, 15738 (2018) 2018年5月 [査読有り]
Magnetic oscillation is a generic property of electronic conductors under<br />
magnetic fields and widely appreciated as a useful probe of their electronic<br />
band structure, i.e., the Fermi surface geometry. However, the usage of the<br />
st...
T Sakai   K Okamoto   K Okunishi   M Sato   
JOURNAL OF PHYSICS-CONDENSED MATTER 16(11) S785-S789 2004年3月
We study, at T = 0, the anomalies in the magnetization curve of the S = 1 two-leg ladder with frustrated interactions. We focus mainly on the existence of the M = M-s/2 plateau, where M-s is the saturation magnetization. We report the results usin...