Theory of geometry induced quantum transport.

Sweeney, V and Burbridge, C R and Leadbeater, M and Lambert, C J (1996) Theory of geometry induced quantum transport. Czechoslovak Journal of Physics, 46 (s5). pp. 2515-2516. ISSN 0011-4626

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Abstract

We present theoretical results for the geometry-dependence of the electrical conductance of a phase-coherent two-dimensional electron gas (2DEG). As an example, we examine a staircase-shaped 2DEG formed from a periodic array of rectangular cells joined near their corners and compare the differential conductance G(E) at voltage V, with the density of states N(E) at energy E = eV. By evaluating the multi-channel Landauer formula, we demonstrate that near the band tails, geometry-induced structure persists, even in the presence of disorder.*

Item Type:	Article
Journal or Publication Title:	Czechoslovak Journal of Physics
Subjects:	Q Science > QC Physics
Departments:	Faculty of Science and Technology > Physics
ID Code:	58157
Deposited By:	ep_importer_pure
Deposited On:	24 Oct 2012 15:50
Refereed?:	Yes
Published?:	Published
Last Modified:	24 Oct 2012 15:50
Identification Number:
URI:	http://eprints.lancs.ac.uk/id/eprint/58157

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