Aharonov-Bohm conductance oscillation of an antidot

Y. Takagaki; D. K. Ferry

doi:10.1016/0039-6028(94)90975-X

Aharonov-Bohm conductance oscillation of an antidot

Y. Takagaki, D. K. Ferry

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

8 Scopus citations

Abstract

Magnetoconductance of a strip of two-dimensional electron gas is calculated in the presence of an antidot potential. We use both abrupt and smooth models for the antidot potential. An oscillation due to the Aharonov-Bohm effect is observed as a circulating edge state around the antidot is established. As short-range disorder is introduced, the amplitude of the oscillation is enhanced (suppressed) for magnetic fields below (above) the threshold of the circulating edge state. The position of the resonances in a magnetic field is found to be nearly independent of the moderate disorder.

Original language	English (US)
Pages (from-to)	669-673
Number of pages	5
Journal	Surface Science
Volume	305
Issue number	1-3
DOIs	https://doi.org/10.1016/0039-6028(94)90975-X
State	Published - Mar 20 1994

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(94)90975-X

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title = "Aharonov-Bohm conductance oscillation of an antidot",

abstract = "Magnetoconductance of a strip of two-dimensional electron gas is calculated in the presence of an antidot potential. We use both abrupt and smooth models for the antidot potential. An oscillation due to the Aharonov-Bohm effect is observed as a circulating edge state around the antidot is established. As short-range disorder is introduced, the amplitude of the oscillation is enhanced (suppressed) for magnetic fields below (above) the threshold of the circulating edge state. The position of the resonances in a magnetic field is found to be nearly independent of the moderate disorder.",

author = "Y. Takagaki and Ferry, {D. K.}",

note = "Funding Information: This work was supported in part by the Office of Naval Research.",

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T1 - Aharonov-Bohm conductance oscillation of an antidot

AU - Takagaki, Y.

AU - Ferry, D. K.

N1 - Funding Information: This work was supported in part by the Office of Naval Research.

PY - 1994/3/20

Y1 - 1994/3/20

N2 - Magnetoconductance of a strip of two-dimensional electron gas is calculated in the presence of an antidot potential. We use both abrupt and smooth models for the antidot potential. An oscillation due to the Aharonov-Bohm effect is observed as a circulating edge state around the antidot is established. As short-range disorder is introduced, the amplitude of the oscillation is enhanced (suppressed) for magnetic fields below (above) the threshold of the circulating edge state. The position of the resonances in a magnetic field is found to be nearly independent of the moderate disorder.

AB - Magnetoconductance of a strip of two-dimensional electron gas is calculated in the presence of an antidot potential. We use both abrupt and smooth models for the antidot potential. An oscillation due to the Aharonov-Bohm effect is observed as a circulating edge state around the antidot is established. As short-range disorder is introduced, the amplitude of the oscillation is enhanced (suppressed) for magnetic fields below (above) the threshold of the circulating edge state. The position of the resonances in a magnetic field is found to be nearly independent of the moderate disorder.

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VL - 305

SP - 669

EP - 673

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

Aharonov-Bohm conductance oscillation of an antidot

Abstract

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