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Observation of electric current induced by optically injected spin current

被引：42
作者：
Cui, Xiao-Dong
Shen, Shun-Qing [1 ]
Li, Jian
Ji, Yang
Ge, Weikun
Zhang, Fu-Chun
机构：
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[2] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
[3] Univ Hong Kong, HKU CAS Joint Lab New Mat, Hong Kong, Hong Kong, Peoples R China
[4] Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China
[5] Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China
[6] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[7] Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Hong Kong, Hong Kong, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 24期
关键词：
D O I：
10.1063/1.2748843
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Linearly polarized light at normal incidence injects a spin current into a strip of two-dimensional electron gas with Rashba spin-orbit coupling. The authors report observation of an electric current when such light is shed on the vincinity of the junction in a crossbar-shaped InGaAs/InAlAs quantum well Rashba system. The polarization dependence of this electric current was experimentally observed to be the same as that of the spin current. The authors attribute the observed electric current to the scattering of the optically injected spin current at the crossing. (c) 2007 American Institute of Physics.
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页数：3
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