INTERBAND QUANTUM KINETICS WITH STATIC DISORDER SCATTERING .1. DIRECTCPA SOLUTION FOR A RECTANGULAR-PULSE-EXCITED SEMICONDUCTOR

Authors
KALVOVA A VELICKY B
Citation
A. Kalvova et B. Velicky, INTERBAND QUANTUM KINETICS WITH STATIC DISORDER SCATTERING .1. DIRECTCPA SOLUTION FOR A RECTANGULAR-PULSE-EXCITED SEMICONDUCTOR, Zeitschrift fur Physik. B, Condensed matter, 94(3), 1994, pp. 273-279
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Zeitschrift fur Physik. B, Condensed matter → ACNP
ISSN journal
07223277
Volume
94
Issue
3
Year of publication
1994
Pages
273 - 279
Database
ISI
SICI code
0722-3277(1994)94:3<273:IQKWSD>2.0.ZU;2-G
Abstract
For a two band model semiconductor alloy with the disorder potential c oncentrated to the conduction band, the photoexcitation by a long rect angular pulse represents a case soluble in the coherent potential appr oximation. Explicit analytic expressions for the transient electron di stribution are derived using the nonequilibrium Green functions. The e vanescent coherent component is gradually superseded by the incoherent distribution whose saturation value is obtained using the Ward identi ty.