Quantum oscillations of point contact conductance in a short-contact-constriction case
- 27 March 1989
- journal article
- letter
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (12) , 2289-2292
- https://doi.org/10.1088/0953-8984/1/12/014
Abstract
The results of a conductance calculation for the case of an extremely short contact constriction in a two-dimensional electron gas are presented. An exact solution of the problem is obtained by making use of the slit diffraction results. Although the plot of the conductance as a function of the constriction width shows no quantised steps (this is in contrast to the case for a long contact constriction), the quantum conductance oscillations are well defined.Keywords
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