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Giant mesoscopic spin Hall effect on surface of topological insulator

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arxiv 1009.3689 v1 pith:K5AMMHHK submitted 2010-09-20 cond-mat.mes-hall

Giant mesoscopic spin Hall effect on surface of topological insulator

Jin-Hua Gao , Jie Yuan , Wei-Qiang Chen , Yi Zhou , Fu-Chun Zhang This is my paper
classification cond-mat.mes-hall
keywords spinpotentialeffectgianthallinsulatormesoscopicsurface
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study mesoscopic spin Hall effect on the surface of topological insulator with a step-function potential. The giant spin polarization induced by a transverse electric current is derived analytically by using McMillan method in the ballistic transport limit, which oscillates across the potential boundary with no confinement from the potential barrier due to the Klein paradox, and should be observable in spin resolved scanning tunneling microscope.

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