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Title: Observation of electric current induced by optically injected spin current
Authors: Cui, Xiao-Dong
Shen, Shun-Qing
Li, Jian
Ji, Yang
Ge, Wei-Kun
Zhang, Fu-Chun
Keywords: Indium compounds
Gallium compounds
Gallium arsenide
Aluminium compounds
III-V semiconductors
Semiconductor quantum wells
Two-dimensional electron gas
Spin-orbit interactions
Charge injection
Spin polarised transport
Issue Date: 11-Jun-2007
Citation: Applied physics letters, v. 90, 242115 (2007)
Abstract: 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.
Rights: Applied Physics Letters © copyright (2007) American Institute of Physics. The Journal's web site is located at
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