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Rectification of spin-bias-induced charge currents

Zhai, Feng; Zhao, Xiaofang and Xu, Hongqi LU (2009) In Applied Physics Letters 94(26).
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
quantum point contacts, rectification, spin-orbit interactions
in
Applied Physics Letters
volume
94
issue
26
publisher
American Institute of Physics
external identifiers
  • wos:000267697300020
  • scopus:67649961459
ISSN
0003-6951
DOI
10.1063/1.3162304
language
English
LU publication?
yes
id
1ce6c51e-b8e4-4bd0-8721-c20cad84361e (old id 1463487)
date added to LUP
2009-08-18 10:02:05
date last changed
2017-01-01 04:30:25
@article{1ce6c51e-b8e4-4bd0-8721-c20cad84361e,
  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.},
  articleno    = {262103},
  author       = {Zhai, Feng and Zhao, Xiaofang and Xu, Hongqi},
  issn         = {0003-6951},
  keyword      = {quantum point contacts,rectification,spin-orbit interactions},
  language     = {eng},
  number       = {26},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Rectification of spin-bias-induced charge currents},
  url          = {http://dx.doi.org/10.1063/1.3162304},
  volume       = {94},
  year         = {2009},
}