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STARK LADDERS OF THE 2-BAND APPROXIMATION
ZHAO, XG; ZHAO, XG , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
1992
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN0953-8984
卷号4期号:28页码:L383-L387
摘要The problem of Bloch electrons in infinite crystals under the influence of an electric field is investigated with the interband coupling being taken into account. Of special interest is the case of the two-band approximation. Exact solutions for the energy spectrum and the wave functions are obtained by using perturbation theory for the case of weak interband coupling, and it is shown that the energy spectrum is that of two interspaced Stark ladders. Since the spectrum contains, in addition to a linear term of the applied electric field, the reciprocal of the applied electric field to all orders, it implies that the Stark regime will appear sharp for greater values of the external field. For the zero-order case of the perturbation theory, the exact Wannier-Stark localization holds.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Electric-field Superlattices Localization States
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/311006/12149
专题理论物理所1978-2010年知识产出
通讯作者ZHAO, XG , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
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GB/T 7714
ZHAO, XG,ZHAO, XG , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. STARK LADDERS OF THE 2-BAND APPROXIMATION[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1992,4(28):L383-L387.
APA ZHAO, XG,&ZHAO, XG , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1992).STARK LADDERS OF THE 2-BAND APPROXIMATION.JOURNAL OF PHYSICS-CONDENSED MATTER,4(28),L383-L387.
MLA ZHAO, XG,et al."STARK LADDERS OF THE 2-BAND APPROXIMATION".JOURNAL OF PHYSICS-CONDENSED MATTER 4.28(1992):L383-L387.
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