TITLE

Rectification of spin-bias-induced charge currents

AUTHOR(S)
Feng Zhai; Xiaofang Zhao; Xu, H. Q.
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/29/2009, Vol. 94 Issue 26, p262103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
When a spin bias is applied to a two-terminal device, a charge current will be generated. We demonstrate the rectification of such a current by studying spin-dependent transport through a quantum point contact (QPC) modulated by a spin-orbit interaction. When the polarization orientation of the spin bias (which is the spin-quantization axis) is along the transverse direction of the QPC, the two spin-conserved transmissions show a distinct variation with the incident energy. As a result, the charge current can turn from zero to a remarkable value by switching the spin bias from one lead to the other lead.
ACCESSION #
42961974

 

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