Observation of electric current induced by optically injected spin current

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dc.creatorCui, Xiao-Dong
dc.creatorShen, Shun-Qing
dc.creatorLi, Jian
dc.creatorGe, Weikun
dc.creatorZhang, Fu-Chun
dc.date2006-08-25
dc.date.accessioned2026-07-07T08:10:52Z
dc.date.available2026-07-07T08:10:52Z
dc.descriptionA normally incident light of linear polarization injects a pure spin current in a strip of 2-dimensional electron gas with spin-orbit coupling. We report observation of an electric current with a butterfly-like pattern induced by such a light shed on the vicinity of a crossbar shaped InGaAs/InAlAs quantum well. Its light polarization dependence is the same as that of the spin current. We attribute the observed electric current to be converted from the optically injected spin current caused by scatterings near the crossing. Our observation provides a realistic technique to detect spin currents, and opens a new route to study the spin-related science and engineering in semiconductors.
dc.description15 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0608546
dc.identifierhttp://arxiv.org/abs/cond-mat/0608546
dc.identifierAppl. Phys. Lett. 90, 242115 (2007)
dc.identifierdoi:10.1063/1.2748843
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131947
dc.subjectMesoscale and Nanoscale Physics
dc.titleObservation of electric current induced by optically injected spin current
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