Effect of Valence-Band Mixing on Density Oscillations in 2D Hole Systems

Abstract:

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We have calculated the spatial profile of density modulations generated in two-dimensional (2D) hole gases in response to an impurity potential. Both short-range and Coulombic point impurities are considered. The density response of hole systems turns out to be generally different from that seen in conduction-electron systems. Our results point to the importance of valence-band-mixing effects, especially in the regime of higher hole sheet densities.

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Periodical:

Edited by:

B. J. Ruck and T. Kemmitt

Pages:

89-92

DOI:

10.4028/www.scientific.net/MSF.700.89

Citation:

T. Kernreiter et al., "Effect of Valence-Band Mixing on Density Oscillations in 2D Hole Systems", Materials Science Forum, Vol. 700, pp. 89-92, 2012

Online since:

September 2011

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$35.00

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