| Issue |
Europhys. Lett.
Volume 39, Number 1, July I 1997
|
|
|---|---|---|
| Page(s) | 73 - 78 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00316-7 | |
| Published online | 01 September 2002 | |
Temporal instabilities in the far-from-equilibrium transport of quantum point contacts
1
Department of Physics,
University of Oregon -
Eugene, OR 97403, USA
2
Department of Electrical Engineering, Arizona
State University - Tempe, AZ 85287, USA
Received:
23
January
1997
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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