Spin Currents Induced by Nonuniform Rashba-Type Spin–Orbit Field
Spin Currents Induced by Nonuniform Rashba-Type Spin–Orbit Field
复制标题
非均匀 Rashba 型自旋轨道场引起的自旋电流
DOI:
10.1143/jpsj.80.084701
复制
发表时间:
2011
影响因子:
1.7
通讯作者:
S. Murakami
中科院分区:
文献类型:
--
作者:
K. Tsutsui;A. Takeuchi;G. Tatara;S. Murakami
We study the spin relaxation torque in nonmagnetic or ferromagnetic metals with nonuniform spin–orbit coupling within the Keldysh Green's function formalism. In non-magnet, the relaxation torque is shown to arise when the spin–orbit coupling is not uniform. In the absence of an external field, the spin current induced by the relaxation torque is proportional to the vector chirality of Rashba-type spin–orbit field (RSOF). In the presence of an external field, on the other hand, spin relaxation torque arises from the coupling of the external field and vector chirality of RSOF. Our result indicates that spin-sink or source effects are controlled by designing RSOF in junctions.
登录
查看更多内容
DOI:
--
发表时间:
2010
期刊:
Physical Review B VOL.81
影响因子:
--
作者:
Akihito Takeuchi;Kazuhiro Hosono;Gen Tatara
通讯作者:
Gen Tatara
影响因子:
56.9
作者:
Murakami, S;Nagaosa, N;Zhang, SC
通讯作者:
Zhang, SC
影响因子:
64.8
作者:
Uchida, K.;Takahashi, S.;Saitoh, E.
通讯作者:
Saitoh, E.
影响因子:
8.6
作者:
Kimura, T.;Otani, Y.;Maekawa, S.
通讯作者:
Maekawa, S.