Low Temperature Physics: 30, 871 (2004); https://doi.org/10.1063/1.1819866 (3 pages)
Fizika Nizkikh Temperatur: Volume 30, Number 11 (November 2004), p. 1162-1165    ( to contents , go back )

Formation of double quantum well in wide self-consistent p-type quantum well

G.A. Alshanskii and M.V. Yakunin

Institute of Metal Physics , S. Kovalevskoyi st. 18, Ekaterinburg 620219, Russia
E-mail: alshansk@imp.uran.ru
pos Анотація:

Received August 28, 2004

Abstract

A self-consistent double quantum well formed in the single wide quantum p-type well under uniaxial deformation has been investigated. The characteristic property of the p-type systems is the valence band structure which consists of two dispersion curves — heavy and light holes. It is shown that this specific feature leads to significant splitting of the symmetric and antisymmetric subbands in the nonzero wave vector, and hampers the formation of a double quantum well with a vanishingly small gap; the uniaxial deformation removes degeneration of the subband in the zero wave vector, which leads to the quasidegeneration of the symmetric and antisymmetric subbands in nonzero wave vectors and formation of a double quantum well system.

PACS:
73.50.Jt - Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects)
73.20.-r - Electron states at surfaces and interfaces

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