Aharonov-Bohm conductance oscillation of an antidot

Y. Takagaki, D. K. Ferry

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Pages (from-to)669-673
Number of pages5
JournalSurface Science
Volume305
Issue number1-3
DOIs
StatePublished - Mar 20 1994

ASJC Scopus subject areas

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

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