ITP OpenIR  > SCI期刊论文
Zheng, WJ; Yu, Y; Su, ZB; Zheng, WJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Phenomenological understanding of a transport regime with reflection symmetry in the quantum Hall system in a composite-fermion picture
Source PublicationPHYSICAL REVIEW B
KeywordInsulator-transition Phase-transitions Magnetic-fields Liquid Conductivity
AbstractIn this paper, we present a phenomenological picture based on the composite fermion theory, in response to the recent discovery by Shahar et al. [Science 274, 589 (1996)] of a transport regime near the transition from a v=1 quantum Hall liquid to a Hall insulator. In this picture, the seemingly unexpected reflection symmetry in the longitudinal resistivity rho(xx) can be understood clearly as due to the symmetry of the gap excitations which dominate sigma(xx) across the transition, and the abrupt change in sigma(xy) at the transition. The parameter alpha in the linear fit of v(0)(T) of Shahar et al. is also given a simple physical meaning, and the effective mass can be calculated from alpha, which gives a reasonable value of several-electron band mass. When taking into account the result of network model, the almost invariant Hall resistivity rho(xy) across the transition is also well understood.
1998
ISSN1098-0121
Volume58Issue:11Pages:6740-6743
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12267
CollectionSCI期刊论文
Corresponding AuthorZheng, WJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Zheng, WJ,Yu, Y,Su, ZB,et al. Phenomenological understanding of a transport regime with reflection symmetry in the quantum Hall system in a composite-fermion picture[J]. PHYSICAL REVIEW B,1998,58(11):6740-6743.
APA Zheng, WJ,Yu, Y,Su, ZB,&Zheng, WJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(1998).Phenomenological understanding of a transport regime with reflection symmetry in the quantum Hall system in a composite-fermion picture.PHYSICAL REVIEW B,58(11),6740-6743.
MLA Zheng, WJ,et al."Phenomenological understanding of a transport regime with reflection symmetry in the quantum Hall system in a composite-fermion picture".PHYSICAL REVIEW B 58.11(1998):6740-6743.
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