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Yang, SJ; Yu, Y; Zhu, BF; Yang, SJ , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
Anisotropic transport for the v=2/5 fractional quantum Hall state at intermediate magnetic fields
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
KeywordCharge-density-wave 2-dimensional Electron Liquid High Landau-levels Composite Fermions Spin Polarization Wigner Crystal Collective Modes Phase-transition Ground-state Energy
AbstractThe nu = 2/5 state is spin unpolarized at weak magnetic field and fully polarized at strong field. At intermediate field, a plateau of half the maximal polarization is observed. We study this phenomenon in the framework of composite fermion (CF) theory. Due to the mixing of the CF Landau levels (LLs), the unidirectional charge/spin density wave state of CFs is lower in energy than the Wigner crystal. This means that transport anisotropy, similar to that for electrons in higher Landau levels at half-filling, may appear in this fractional quantum Hall state when the external magnetic field is in an appropriate range. When the magnetic field is tilted, the easy transport direction is perpendicular to the direction of the in-plane field. Varying the partial filling factor of CF LLs from 0 to 1, we find that the energy minimum occurs in the vicinity of a half.
2002
ISSN0953-8984
Volume14Issue:41Pages:9615-9620
Subject AreaPhysics
Indexed BySCI
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13413
Collection理论物理所科研产出_SCI论文
Corresponding AuthorYang, SJ , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
Yang, SJ,Yu, Y,Zhu, BF,et al. Anisotropic transport for the v=2/5 fractional quantum Hall state at intermediate magnetic fields[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2002,14(41):9615-9620.
APA Yang, SJ,Yu, Y,Zhu, BF,&Yang, SJ , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(2002).Anisotropic transport for the v=2/5 fractional quantum Hall state at intermediate magnetic fields.JOURNAL OF PHYSICS-CONDENSED MATTER,14(41),9615-9620.
MLA Yang, SJ,et al."Anisotropic transport for the v=2/5 fractional quantum Hall state at intermediate magnetic fields".JOURNAL OF PHYSICS-CONDENSED MATTER 14.41(2002):9615-9620.
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