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Are transport anomalies in "electron waveguides" classical?

Roukes, M. L. and Scherer, A. and van der Gaag, B. P. (1990) Are transport anomalies in "electron waveguides" classical? Physical Review Letters, 64 (10). pp. 1154-1158. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:ROUprl90a

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Abstract

We test the implicit prediction of a recent classical model that transport anomalies in ballistic multiprobe conductors—the last plateau, quenching, and the negative bend resistance—should scale with Fermi momentum, pF. Data from junctions defined by adiabatic lateral potentials (having corners with radii of curvature rJ>ħ/pF) qualitatively scale classically; departures observed are attributed to momentum-memory loss from random scattering. With more abrupt (square-cornered) junctions, however, nonclassical pF dependence emerges.


Item Type:Article
Additional Information:©1990 The American Physical Society Received 27 November 1989 We thank S.J. Allen, Jr., H.U. Baranger, C.W.J. Beenakker, M. Büttiker, A. Del Vescovo, G. Kirczenow, F.M. Peeters, T.J. Thornton, and J.M. Worlock for illuminating discussions.
Record Number:CaltechAUTHORS:ROUprl90a
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ROUprl90a
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.64.1154
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5732
Collection:CaltechAUTHORS
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Deposited On:30 Oct 2006
Last Modified:18 Sep 2014 18:11

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