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Anisotropic transport for the v=2/5 fractional quantum Hall state at intermediate magnetic fields
Yang, SJ; Yu, Y; Zhu, BF; Yang, SJ , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
2002
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN0953-8984
卷号14期号:41页码:9615-9620
摘要The 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.
部门归属Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Charge-density-wave 2-dimensional Electron Liquid High Landau-levels Composite Fermions Spin Polarization Wigner Crystal Collective Modes Phase-transition Ground-state Energy
学科领域Physics
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收录类别SCI
WOS记录号WOS:000179214300020
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13413
专题理论物理所SCI论文
通讯作者Yang, SJ , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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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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