Nonlinear transport and fluctuations in polar semiconductors

被引：6
作者：
Mourokh, LG
Zheltov, SN
机构：
[1] Radiophysics Department, N. Lobachevsky State University, 603600 Nizhny Novgorod
来源：
PHYSICA B | 1996年 / 228卷 / 3-4期
关键词：
nonlinear transport; polar semiconductors; fluctuations;
D O I：
10.1016/S0921-4526(96)00482-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this work we investigate the transport of noninteracting electrons coupled to polar optical phonons. We obtain the non-Markovian Langevin-like equations describing both the drift motion and fluctuations. We find the dependences of the drift velocity and the fluctuation level on the applied field. The possibility of the suppression of thermal fluctuations by the external field is predicted. Conditions under which the regime of runaway takes place are found.
引用
收藏
页码：305 / 311
页数：7
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