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LOCALIZATION OF BAND ELECTRONS IN DC-AC ELECTRIC-FIELDS
ZHAO, XG; NIU, Q; ZHAO, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
1994
发表期刊PHYSICS LETTERS A
ISSN0375-9601
卷号191期号:40910页码:181-184
摘要The dynamic effect of band electrons is investigated in the presence of ac and dc electric fields. The explicit solutions for the quasienergies and the Floquet states are obtained exactly in a one band approximation. The results depend on the number-theoretical property of the matching ratio omega(D)/omega, where omega is the ac frequency and omega(D) is the frequency of the Stark ladders associated with the dc field. If the matching ratio is rational, all the Floquet states are extended in general. If it is irrational, the states are exponentially localized, except for the cases where the matching ratio is extremely well approximated by rationals (i.e., a Liouville number).
部门归属ACAD SINICA,INST THEORET PHYS,POB K2735,BEIJING 100080,PEOPLES R CHINA; UNIV TEXAS,DEPT PHYS,AUSTIN,TX 78712
关键词Dynamic Localization Stark Localization Charged-particle Bloch Electrons Superlattices Oscillations
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/311006/11867
专题理论物理所1978-2010年知识产出
通讯作者ZHAO, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
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ZHAO, XG,NIU, Q,ZHAO, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. LOCALIZATION OF BAND ELECTRONS IN DC-AC ELECTRIC-FIELDS[J]. PHYSICS LETTERS A,1994,191(40910):181-184.
APA ZHAO, XG,NIU, Q,&ZHAO, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1994).LOCALIZATION OF BAND ELECTRONS IN DC-AC ELECTRIC-FIELDS.PHYSICS LETTERS A,191(40910),181-184.
MLA ZHAO, XG,et al."LOCALIZATION OF BAND ELECTRONS IN DC-AC ELECTRIC-FIELDS".PHYSICS LETTERS A 191.40910(1994):181-184.
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