Dephasing and ac oscillations in an open Aharanov-Bohm ring

Zhongshui Ma; Koung-An Chao; GP He

doi:10.1016/S0038-1098(02)00097-2

Dephasing and ac oscillations in an open Aharanov-Bohm ring

Zhongshui Ma, Koung-An Chao, GP He

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	217-221
Journal	Solid State Communications
Volume	122
Issue number	3-4
DOIs	https://doi.org/10.1016/S0038-1098(02)00097-2
Publication status	Published - 2002

Subject classification (UKÄ)

Condensed Matter Physics

Free keywords

tunneling
nanostructures
semiconductors
dephasing in magnetotransport

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10.1016/S0038-1098(02)00097-2

Cite this

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title = "Dephasing and ac oscillations in an open Aharanov-Bohm ring",

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.",

keywords = "tunneling, nanostructures, semiconductors, dephasing in magnetotransport",

author = "Zhongshui Ma and Koung-An Chao and GP He",

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journal = "Solid State Communications",

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T1 - Dephasing and ac oscillations in an open Aharanov-Bohm ring

AU - Ma, Zhongshui

AU - Chao, Koung-An

AU - He, GP

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - tunneling

KW - nanostructures

KW - semiconductors

KW - dephasing in magnetotransport

U2 - 10.1016/S0038-1098(02)00097-2

DO - 10.1016/S0038-1098(02)00097-2

M3 - Article

SN - 1879-2766

VL - 122

SP - 217

EP - 221

JO - Solid State Communications

JF - Solid State Communications

IS - 3-4

ER -

Dephasing and ac oscillations in an open Aharanov-Bohm ring

Abstract

Subject classification (UKÄ)

Free keywords

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