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Emission of transverse acoustic phonons by two-dimensional electrons due to heterointerface vibrations

Emission of transverse acoustic phonons by two-dimensional electrons due to heterointerface... A mechanism of two-dimensional (2D) electron interaction with acoustic phonons due to heterointerface vibrations is predicted in quantum structures. This mechanism originates from the fact that acoustic phonons induce vibrations of heterointerface boundaries and, hence, the modulation of electron quantization energies. For such a mechanism the electron interaction with transverse acoustic modes is not forbidden. We have calculated the emission rates of transverse acoustic phonons by hot 2D electrons in quantum wells. The energy and angular distributions of emitted phonons via this ‘‘macroscopic deformation’’ mechanism of coupling are calculated. Comparison to the piezoelectric mechanism of phonon emission is presented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Emission of transverse acoustic phonons by two-dimensional electrons due to heterointerface vibrations

Vasko, F. T; Mitin, V. V
Physical Review B , Volume 52 (3) – Jul 15, 1995
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Publisher
American Physical Society (APS)
Copyright
Copyright © 1995 The American Physical Society
ISSN
1095-3795
DOI
10.1103/PhysRevB.52.1500
Publisher site
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Abstract

A mechanism of two-dimensional (2D) electron interaction with acoustic phonons due to heterointerface vibrations is predicted in quantum structures. This mechanism originates from the fact that acoustic phonons induce vibrations of heterointerface boundaries and, hence, the modulation of electron quantization energies. For such a mechanism the electron interaction with transverse acoustic modes is not forbidden. We have calculated the emission rates of transverse acoustic phonons by hot 2D electrons in quantum wells. The energy and angular distributions of emitted phonons via this ‘‘macroscopic deformation’’ mechanism of coupling are calculated. Comparison to the piezoelectric mechanism of phonon emission is presented.

Journal

Physical Review B – American Physical Society (APS)

Published: Jul 15, 1995

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