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Dephasing and ac oscillations in an open Aharanov-Bohm ring

Ma, Zhongshui LU ; Chao, Koung-An LU and He, GP (2002) In Solid State Communications 122(3-4). p.217-221
Abstract
We have studied the tunneling current in an open ring system enclosing a magnetic flux which may have an ac component. Analytic expressions for the time-averaged tunneling current have been obtained, which suggest two possible experiments to determine the temperature dependence of the dephasing rate. We have also discovered a new phenomenon that with a given dc magnetic flux, the Current is an oscillating function of the ac magnetic flux, but with decaying amplitude of oscillation. This result is also observable experimentally. (C) 2002 Elsevier Science Ltd. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
tunneling, nanostructures, semiconductors, dephasing in magnetotransport
in
Solid State Communications
volume
122
issue
3-4
pages
217 - 221
publisher
Pergamon
external identifiers
  • wos:000175844000021
  • scopus:0036530578
ISSN
1879-2766
DOI
10.1016/S0038-1098(02)00097-2
language
English
LU publication?
yes
id
b84d2844-5624-44e7-877a-e9cf898a3cd1 (old id 336373)
date added to LUP
2007-11-19 13:08:02
date last changed
2017-01-01 05:00:49
@article{b84d2844-5624-44e7-877a-e9cf898a3cd1,
  abstract     = {We have studied the tunneling current in an open ring system enclosing a magnetic flux which may have an ac component. Analytic expressions for the time-averaged tunneling current have been obtained, which suggest two possible experiments to determine the temperature dependence of the dephasing rate. We have also discovered a new phenomenon that with a given dc magnetic flux, the Current is an oscillating function of the ac magnetic flux, but with decaying amplitude of oscillation. This result is also observable experimentally. (C) 2002 Elsevier Science Ltd. All rights reserved.},
  author       = {Ma, Zhongshui and Chao, Koung-An and He, GP},
  issn         = {1879-2766},
  keyword      = {tunneling,nanostructures,semiconductors,dephasing in magnetotransport},
  language     = {eng},
  number       = {3-4},
  pages        = {217--221},
  publisher    = {Pergamon},
  series       = {Solid State Communications},
  title        = {Dephasing and ac oscillations in an open Aharanov-Bohm ring},
  url          = {http://dx.doi.org/10.1016/S0038-1098(02)00097-2},
  volume       = {122},
  year         = {2002},
}