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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
; and
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
article number
262103
publisher
American Institute of Physics (AIP)
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
2016-04-01 11:45:06
date last changed
2025-10-14 12:28:31
@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.}},
  author       = {{Zhai, Feng and Zhao, Xiaofang and Xu, Hongqi}},
  issn         = {{0003-6951}},
  keywords     = {{quantum point contacts; rectification; spin-orbit interactions}},
  language     = {{eng}},
  number       = {{26}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Applied Physics Letters}},
  title        = {{Rectification of spin-bias-induced charge currents}},
  url          = {{http://dx.doi.org/10.1063/1.3162304}},
  doi          = {{10.1063/1.3162304}},
  volume       = {{94}},
  year         = {{2009}},
}