SPECTROSCOPY OF THE POTENTIAL PROFILE IN A BALLISTIC QUANTUM CONSTRICTION

Authors
ARONOV IE JONSON M ZAGOSKIN AM
Citation
Ie. Aronov et al., SPECTROSCOPY OF THE POTENTIAL PROFILE IN A BALLISTIC QUANTUM CONSTRICTION, Physical review. B, Condensed matter, 50(7), 1994, pp. 4590-4593
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
7
Year of publication
1994
Pages
4590 - 4593
Database
ISI
SICI code
0163-1829(1994)50:7<4590:SOTPPI>2.0.ZU;2-Z
Abstract
We present a theory for the nonlinear current-voltage characteristics of a ballistic quantum constriction. Nonlinear features first develop because of above-barrier reflection from the potential profile, create d by impurities in the vicinity of the constriction. The nonlinearity appears on a small voltage scale and makes it possible to determine di stances between impurities as well as the magnitude of the impurity po tentials.