Long-Wavelength Phonon Scattering in Nonpolar Semiconductors

P. Lawaetz
Phys. Rev. 183, 730 – Published 15 July 1969
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Abstract

The long-wavelength acoustic- and optical-phonon scattering of carriers in nonpolar semiconductors is considered from a general point of view. The deformation-potential approximation is defined and it is shown that long-range electrostatic forces give a nontrivial correction to the scattering. For completeness, corrections due to nonlocal effects like spin-orbit coupling are treated, but the general conclusion is that the deformation-potential approach is a very good approximation except in some cases of optical-phonon scattering. The smallness of the nontrivial corrections is interpreted in terms of the very-short-range nature of interactions in a covalent semiconductor.

  • Received 14 October 1968

DOI:https://doi.org/10.1103/PhysRev.183.730

©1969 American Physical Society

Authors & Affiliations

P. Lawaetz

  • Physics Laboratory III, The Technical University of Denmark, Lyngby, Denmark

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Issue

Vol. 183, Iss. 3 — July 1969

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