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题名: Effect of subband Landau level coupling to the linearly dispersing collective mode in a quantum Hall ferromagnet
作者: Yu, Y
刊名: PHYSICAL REVIEW B
出版日期: 2002
卷号: 66, 期号:11, 页码:-
关键词: SPONTANEOUS INTERLAYER COHERENCE ;  PHASE-TRANSITIONS ;  SYSTEMS ;  STATES ;  FIELD
学科分类: Physics
通讯作者: Yu, Y , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: In a recent experiment [Phys. Rev. Lett. 87, 036803 (2001)], Spielman observed a linearly dispersing collective mode in a quantum Hall ferromagnet. While it qualitatively agrees with the Goldstone mode dispersion at small wave vector, the experimental mode velocity is slower than that calculated by previous theories by a factor of about 0.55. A quantitative correction may be achieved by taking the subband Landau-level coupling into account due to the finiteness of the layer thickness, which gives a better agreement with the experimental data. A method coupling the quantum fluctuation to the tunneling is briefly discussed.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000178461000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13439
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yu, Y. Effect of subband Landau level coupling to the linearly dispersing collective mode in a quantum Hall ferromagnet[J]. PHYSICAL REVIEW B,2002,66(11):-.
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