Resonant conduction in ballistic quantum channels
- 15 May 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (14), 10452-10455
- https://doi.org/10.1103/physrevb.39.10452
Abstract
The conductance of a short, narrow ballistic constriction in a two-dimensional electron gas in a semiconductor heterostructure is calculated exactly for a simple but plausible model. A novel phenomenon is predicted: Such quantum channels should exhibit resonant conduction in highmobility samples at low temperatures. Their conductance should oscillate strongly as a function of Fermi level and gate voltage. This behavior can be used to measure directly the aspect ratio of the channels.Keywords
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