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Bottleneck effects due to confined phonons in quantum dots

✍ Scribed by R.M. dela Cruz; S.W. Teitsworth; M.A. Stroscio

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
197 KB
Volume
13
Category
Article
ISSN
0749-6036

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✦ Synopsis

A generalization of the three-dimensional FrΓΆhlich hamiltonian for a polar semiconductor is presented which describes the interaction between charge carriers of a zero-dimensional electron gas and longitudinal optical (LO) phonon modes confined in three spatial dimensions. This hamiltonian is used to calculate the scattering rate of electrons by LO phonons in a GaAs quantum box which is free-standing in vacuum. The suppression of scattering through a phonon bottleneck effect is discussed in terms of the selection rules.

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