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

被引：16

作者：

KALVOVA, A ^{[1
]}

VELICKY, B ^{[1
]}

机构：

[1] CHARLES UNIV, CS-12116 PRAGUE 2, CZECH REPUBLIC

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1994年 / 94卷 / 03期

关键词：

D O I：

10.1007/BF01320680

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

For a two band model semiconductor alloy with the disorder potential concentrated to the conduction band, the photoexcitation by a long rectangular pulse represents a case soluble in the coherent potential approximation. Explicit analytic expressions for the transient electron distribution are derived using the nonequilibrium Green functions. The evanescent coherent component is gradually superseded by the incoherent distribution whose saturation value is obtained using the Ward identity.

引用

页码：273 / 279

页数：7

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