Self-consistent hopping transport in superlattices:: non-equilibrium distribution functions and electron heating

被引：4
|
作者：
Rott, S [1 ]
Linder, N [1 ]
Döhler, GH [1 ]
机构：
[1] Univ Erlangen Nurnberg, Inst Tech Phys 1, D-91058 Erlangen, Germany
来源：
PHYSICA B | 1999年 / 272卷 / 1-4期
关键词：
superlattices; nonlinear transport; hopping conduction;
D O I：
10.1016/S0921-4526(99)00380-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The hopping transport model (Phys. Rev. B 12 (1975) 680) for vertical transport in superlattices has been extended towards a self-consistent calculation of the Wannier-Stark state distribution functions for plane-parallel electron motion. This way, the influence of field-induced electron heating could be investigated in the negative differential conductivity regime of nonequilibrium hopping transport. Variations of the mean electron temperature are observed near the optical phonon resonance which occurs if the Wannier-Stark ladder spacing is equal to the LO phonon energy. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：213 / 215
页数：3
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