Quantum-interference effects of edge channels in the presence of an antidot potential

Y. Takagaki; D. K. Ferry

doi:10.1103/PhysRevB.48.8152

Quantum-interference effects of edge channels in the presence of an antidot potential

Y. Takagaki, D. K. Ferry

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Abstract

We consider magnetotransport properties of a strip of two-dimensional electron gas containing a single antidot potential at the center of the wire. Formation of a circulating edge channel around the antidot leads to an Aharonov-Bohm-type oscillation of the conductance as the magnetic field normal to the strip is varied. We find the appearance of resonant forward transmission as well as resonant reflection. The dependence of the resonances on the field strength and the sample parameters is discussed.

Original language	English (US)
Pages (from-to)	8152-8155
Number of pages	4
Journal	Physical Review B
Volume	48
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.48.8152
State	Published - Jan 1 1993

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.48.8152

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abstract = "We consider magnetotransport properties of a strip of two-dimensional electron gas containing a single antidot potential at the center of the wire. Formation of a circulating edge channel around the antidot leads to an Aharonov-Bohm-type oscillation of the conductance as the magnetic field normal to the strip is varied. We find the appearance of resonant forward transmission as well as resonant reflection. The dependence of the resonances on the field strength and the sample parameters is discussed.",

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AB - We consider magnetotransport properties of a strip of two-dimensional electron gas containing a single antidot potential at the center of the wire. Formation of a circulating edge channel around the antidot leads to an Aharonov-Bohm-type oscillation of the conductance as the magnetic field normal to the strip is varied. We find the appearance of resonant forward transmission as well as resonant reflection. The dependence of the resonances on the field strength and the sample parameters is discussed.

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Quantum-interference effects of edge channels in the presence of an antidot potential

Abstract

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