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Phonon-induced collapse of minibands in superlattices
Zhao, XG; Zhao, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
1997
发表期刊PHYSICS LETTERS A
ISSN0375-9601
卷号230期号:40972页码:229-231
摘要The dynamic effect of electrons in a superlattice is studied in the presence of time-periodic barriers and quantum wells which simulate the electron-phonon interaction for an isolated inelastic-scattering process. The extended or localized nature of Floquet states is demonstrated to be controlled by the phonon frequency and the strength of the strain field. If the ratio of the renormalized average static potential and the phonon frequency is a root of the ordinary Bessel function of order zero, the quasienergy miniband will collapse. Correspondingly the extended motion of the electron turns into localization This phonon-induced localization stems from the interplay of the spatial periodicity of the superlattice and the temporal periodicity of the strain field. (C) 1997 Published by Elsevier Science B.V.
部门归属INST APPL PHYS & COMPUTAT MATH,BEIJING 100088,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Localization Systems Fields Time
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12460
专题理论物理所SCI论文
通讯作者Zhao, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
推荐引用方式
GB/T 7714
Zhao, XG,Zhao, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. Phonon-induced collapse of minibands in superlattices[J]. PHYSICS LETTERS A,1997,230(40972):229-231.
APA Zhao, XG,&Zhao, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1997).Phonon-induced collapse of minibands in superlattices.PHYSICS LETTERS A,230(40972),229-231.
MLA Zhao, XG,et al."Phonon-induced collapse of minibands in superlattices".PHYSICS LETTERS A 230.40972(1997):229-231.
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