5.3k citations · 36.1k across the 195 of their papers we have counts for
7 papers · 1 filter
Coherent wave-packet evolution in coupled bands
Dimitrie Culcer, Yugui Yao, Qian Niu
We develop a formalism for treating coherent wave-packet dynamics of charge and spin carriers in degenerate and nearly degenerate bands. We consider the two-band case carefully in…
Minimal field requirement in precessional magnetization switching
Di Xiao, M. Tsoi, Qian Niu
We investigate the minimal field strength in precessional magnetization switching using the Landau-Lifshitz-Gilbert equation in under-critically damped systems. It is shown that pr…
Electric generation of spin in crystals with reduced symmetry
Dimitrie Culcer, Yugui Yao, Allan MacDonald +1
We propose a simple way of evaluating the bulk spin generation of an arbitrary crystal with a known band structure in the strong spin-orbit coupling limit. We show that, in the pre…
Non-vanishing spin Hall currents in disordered spin-orbit coupling systems
K. Nomura, Jairo Sinova, T. Jungwirth +2
Spin currents that flow perpendicular to the electric field direction are generic in metals and doped semiconductors with spin-orbit coupling. It has recently been argued that the…
Charge-Hall effect driven by spin force: reciprocal of the spin-Hall effect
Ping Zhang, Qian Niu
A new kind of charge-Hall effect is shown. Unlike in the usual Hall effect, the driving force in the longitudinal direction is a spin force, which may originate from the gradient o…
Quantum Chaos of Bogoliubov Waves for a Bose-Einstein Condensate in Stadium Billiards
Chuanwei Zhang, Jie Liu, Mark G. Raizen +1
We investigate the possibility of quantum (or wave) chaos for the Bogoliubov excitations of a Bose-Einstein condensate in billiards. Because of the mean field interaction in the co…