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Electron scattering from a mesoscopic disk in Rashba system

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arxiv cond-mat/0701162 v1 pith:AZSA4235 submitted 2007-01-09 cond-mat.mes-hall cond-mat.mtrl-sci

classification cond-mat.mes-hallcond-mat.mtrl-sci
keywords electronsscatteringcouplingdiskmesoscopicrashbaspinaddition
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Electrons with spin-orbit coupling moving in mesoscopic structures can often exhibit local spin polarization. In this paper, we study the influence of the Rashba coupling on the scattering of two-dimensional electrons from a circular disk. It is observed that spin-polarized regions exist, even if the incident electrons are unpolarized. In addition to the distributions of charge and spin current in the near-field region, we also analyze the symmetry and the differential cross-section of the scattering.

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