Published March 5, 1990
| Published
Journal Article
Open
Are transport anomalies in "electron waveguides" classical?
- Creators
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Roukes, M. L.
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Scherer, A.
- van der Gaag, B. P.
Chicago
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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.
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.Attached Files
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- CaltechAUTHORS:ROUprl90a
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