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Title: Modeling A.C. Electronic Transport through a Two-Dimensional Quantum Point Contact

Abstract

We present the results on the a.c. transport of electrons moving through a two-dimensional (2D) semiconductor quantum point contact (QPC). We concentrate our attention on the characteristic properties of the high frequency admittance ({omega}{approximately}0 - 50 GHz), and on the oscillations of the admittance in the vicinity of the separatrix (when a channel opens or closes), in presence of the relaxation effects. The experimental verification of such oscillations in the admittance would be a strong confirmation of the semi-classical approach to the a.c. transport in a QPC, in the separatrix region.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
761439
Report Number(s):
LA-UR-98-4860
TRN: US0100597
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: New Phenomena in Mesoscopic Structures, Kauai, HI (US), 12/07/1998--12/11/1998; Other Information: PBD: 7 Dec 1998
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRONS; OSCILLATIONS; RELAXATION; TRANSPORT; VERIFICATION

Citation Formats

Aronov, I.E., Beletskii, N.N., Berman, G.P., Campbell, D.K., Doolen, G.D., and Dudiy, S.V. Modeling A.C. Electronic Transport through a Two-Dimensional Quantum Point Contact. United States: N. p., 1998. Web.
Aronov, I.E., Beletskii, N.N., Berman, G.P., Campbell, D.K., Doolen, G.D., & Dudiy, S.V. Modeling A.C. Electronic Transport through a Two-Dimensional Quantum Point Contact. United States.
Aronov, I.E., Beletskii, N.N., Berman, G.P., Campbell, D.K., Doolen, G.D., and Dudiy, S.V. Mon . "Modeling A.C. Electronic Transport through a Two-Dimensional Quantum Point Contact". United States. https://www.osti.gov/servlets/purl/761439.
@article{osti_761439,
title = {Modeling A.C. Electronic Transport through a Two-Dimensional Quantum Point Contact},
author = {Aronov, I.E. and Beletskii, N.N. and Berman, G.P. and Campbell, D.K. and Doolen, G.D. and Dudiy, S.V.},
abstractNote = {We present the results on the a.c. transport of electrons moving through a two-dimensional (2D) semiconductor quantum point contact (QPC). We concentrate our attention on the characteristic properties of the high frequency admittance ({omega}{approximately}0 - 50 GHz), and on the oscillations of the admittance in the vicinity of the separatrix (when a channel opens or closes), in presence of the relaxation effects. The experimental verification of such oscillations in the admittance would be a strong confirmation of the semi-classical approach to the a.c. transport in a QPC, in the separatrix region.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {12}
}

Conference:
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