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题名: Dynamics of a superlattice with an impurity in a dc-ac electric field
作者: Zhang, AZ ;  Zhang, P ;  Duan, SQ ;  Zhao, XG ;  Liang, JQ
刊名: PHYSICS LETTERS A
出版日期: 2002
卷号: 292, 期号:41004, 页码:275-280
关键词: STARK LADDERS ;  LOCALIZATION ;  LATTICES ;  TIME
学科分类: Physics
通讯作者: Zhang, AZ , Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China.
部门归属: Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Inst Appl Phys & Computat Math, Beijing 100080, Peoples R China
英文摘要: Within a single-band tight-binding model, we investigate the dynamics of a one-dimensional semiconductor superlattice with an impurity driven by a dc-ac electric field. By numerically calculating the quasienergy spectrum and the probability propagators, we find that the dynamic localization condition is not destroyed by the impurity, but the local dynamics of the system is sensitively dependent on the relation of the impurity potential, the Bloch oscillation frequency and the ac field frequency. In appropriate circumstances, the dynamics of the system is dominated by resonant oscillations between the impurity and it nearest-neighbor sites. Such an effect might find important application for generating electromagnetic radiation and systematic study of localization phenomena. (C) 2002 Published by Elsevier Science B.V.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000173429000011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13617
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zhang, AZ,Zhang, P,Duan, SQ,et al. Dynamics of a superlattice with an impurity in a dc-ac electric field[J]. PHYSICS LETTERS A,2002,292(41004):275-280.
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