✦ LIBER ✦

Nonequilibrium Kinetics of Exciton Wave Packets in Crystals

✍ Scribed by Yu. B. Gaididei; A. A. Vakhnenko

Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 453 KB
Volume: 122
Category: Article
ISSN: 0370-1972
DOI: 10.1002/pssb.2221220128

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✦ Synopsis

Abstract

The migration in a crystal of spatially inhomogeneous electronic excitations interacting with a phonon thermostat is studied. The evolution of excitons with band widths of the order of the optical phonon energy or greater is shown to be adequately described by a mixed, site‐energy representation. A generalized diffusion equation is obtained with memory essentially dependent on the exciton energy and with an inhomogeneity term, describing the energy redistribution between the exciton band sublevels.

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