DISTRIBUTION FUNCTION OF A DRIFTING ELECTRON-GAS FOR GENERAL ENERGY-BAND STRUCTURES

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	DISTRIBUTION FUNCTION OF A DRIFTING ELECTRON-GAS FOR GENERAL ENERGY-BAND STRUCTURES
	HUANG K ; WU XG
刊名	physical review b
	1994
卷号	49 期号:3 页码:2223-2225
关键词	TRANSPORT FIELD
ISSN号	0163-1829
通讯作者	huang k chinese acad scinatl lab superlattices & microstructpob 912beijing 100083peoples r china
中文摘要	the usual application of the lei-ting balance equation method for treating electron transport problems makes use of a fermi distribution function for the electron motion relative to the center of mass. it is pointed out that this presumes the existence of a moving frame of reference that is dynamically equivalent to the rest frame of reference, and this is only true for electrons with a constant effective mass. the method is thus inapplicable to problems where electrons governed by a general energy-band dispersion e(k) are important (such as in miniband conduction). it is demonstrated that this difficulty can be overcome by introducing a distribution function for a drifting electron gas by maximizing the entropy subject to a prescribed average drift velocity. the distribution function reduces directly to the usual fermi distribution for electron motion relative to the center of mass in the special case of e(k)=($) over bar h(2)\k\(2)/2m*. this maximum entropy treatment of a drifting electron gas provides a physically more direct as well as a more general basis for the application of the balance equation method.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-11-15
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/14017]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	HUANG K,WU XG. DISTRIBUTION FUNCTION OF A DRIFTING ELECTRON-GAS FOR GENERAL ENERGY-BAND STRUCTURES[J]. physical review b,1994,49(3):2223-2225.
APA	HUANG K,&WU XG.(1994).DISTRIBUTION FUNCTION OF A DRIFTING ELECTRON-GAS FOR GENERAL ENERGY-BAND STRUCTURES.physical review b,49(3),2223-2225.
MLA	HUANG K,et al."DISTRIBUTION FUNCTION OF A DRIFTING ELECTRON-GAS FOR GENERAL ENERGY-BAND STRUCTURES".physical review b 49.3(1994):2223-2225.