This article is cited in 3 papers

CONDENSED MATTER

Conductance of short quantum wires with sharp boundaries

D. A. Kozlov^ab, Z. D. Kvon^ab, A. E. Plotnikov^ab, D. V. Shcheglov^ab, A. V. Latyshev<sup>ab

a</sup> Novosibirsk State University
^b Institute of Semiconductor Physics of SB RAS

Abstract: The conductance of short ballistic wires with boundaries, whose curvature radius is comparable to the electron wavelength, is investigated. It is found that, in such wires, no conductance quantization takes place. Instead, pronounced interference effects are observed. These effects are related to the Fabry-Perot interference by the wire edges and with the mesoscopic interference caused by the coherent scattering of electrons by the wire edges and by the impurities located in the near-wire regions of the 2D electron gas.

PACS: 73.21.Hb, 73.23.-b, 73.63.Nm

Received: 13.09.2007
Revised: 15.10.2007

 English version: Journal of Experimental and Theoretical Physics Letters, 2007, 86:10, 662–665

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