Volume 39, Number 1, July I 1997
|Page(s)||73 - 78|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Temporal instabilities in the far-from-equilibrium transport of quantum point contacts
Department of Physics,
University of Oregon -
Eugene, OR 97403, USA
2 Department of Electrical Engineering, Arizona State University - Tempe, AZ 85287, USA
Accepted: 2 June 1997
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.
PACS: 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers) / 73.20.Mf – Collective excitations (including plasmons and other charge-density excitations)
© EDP Sciences, 1997
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