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题名: Phonon-induced collapse of minibands in superlattices
作者: Zhao, XG
刊名: PHYSICS LETTERS A
出版日期: 1997
卷号: 230, 期号:40972, 页码:229-231
关键词: LOCALIZATION ;  SYSTEMS ;  FIELDS ;  TIME
学科分类: Physics
通讯作者: Zhao, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
部门归属: INST APPL PHYS & COMPUTAT MATH,BEIJING 100088,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12460
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:
Zhao, XG. Phonon-induced collapse of minibands in superlattices[J]. PHYSICS LETTERS A,1997,230(40972):229-231.
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