Absolute Instability in Superlattice Miniband Transport

作     者：雷啸霖 LEI Xiao-lin

作者机构：State Key Laboratory of Functional Materials for InformaticsShanghai Institute of MetallurgyChinese Academy of SciencesShanghai 200050 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1997年第14卷第8期

页      面：605-608页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China the National Commission of Science and Technology of China the Shanghai Municipal Commission of Science and Technology the the Shanghai Foundation for Research and Development of Applied Materials 

主　　题：absolute superlattice absolutely 

摘      要：The possible absolute instability in superlattice miniband transport using the hydrodynamic balance equations for arbitrary energy dispersion is *** contrast to the prediction of the drift-diffusion model that in doped semiconductor superlattices absolute instability occurs closely following the onset of negative differential mobility(NDM),the present analysis shows that a wide-miniband planar superlattice may become absolutely unstable only when it is biased deep in the NDM *** result is in agreement with recent experimental findings.