Temporal instabilities in the far-from-equilibrium transport of quantum point contacts

J. C. Smith; M. N. Wybourne; C. Berven; R. Ramasubramaniam; Stephen Goodnick

doi:10.1209/epl/i1997-00316-7

Temporal instabilities in the far-from-equilibrium transport of quantum point contacts

J. C. Smith, M. N. Wybourne, C. Berven, R. Ramasubramaniam, Stephen Goodnick

Electrical Engineering

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6 Scopus citations

Abstract

We report temporal conductance instabilities in the far-from-equilibrium transport through quantum point contacts. Random telegraph switching between conduction states is shown to have a maximum probability when the chemical potential of the injection electrode is close to a subband minimum. We show the RTS in these far-from-equilibrium experiments must have a different origin to that proposed for RTS in near-equilibrium measurements.

Original language	English (US)
Pages (from-to)	73-78
Number of pages	6
Journal	EPL
Volume	39
Issue number	1
DOIs	https://doi.org/10.1209/epl/i1997-00316-7
State	Published - Jul 1 1997

ASJC Scopus subject areas

General Physics and Astronomy

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10.1209/epl/i1997-00316-7

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abstract = "We report temporal conductance instabilities in the far-from-equilibrium transport through quantum point contacts. Random telegraph switching between conduction states is shown to have a maximum probability when the chemical potential of the injection electrode is close to a subband minimum. We show the RTS in these far-from-equilibrium experiments must have a different origin to that proposed for RTS in near-equilibrium measurements.",

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AU - Ramasubramaniam, R.

AU - Goodnick, Stephen

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AB - We report temporal conductance instabilities in the far-from-equilibrium transport through quantum point contacts. Random telegraph switching between conduction states is shown to have a maximum probability when the chemical potential of the injection electrode is close to a subband minimum. We show the RTS in these far-from-equilibrium experiments must have a different origin to that proposed for RTS in near-equilibrium measurements.

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Temporal instabilities in the far-from-equilibrium transport of quantum point contacts

Abstract

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