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题名: Density-induced reorientation of the stripe at half-filled high Landau levels
作者: Yang, SJ ;  Yu, Y
刊名: PHYSICAL REVIEW B
出版日期: 2003
卷号: 68, 期号:15, 页码:-
关键词: 2-DIMENSIONAL ELECTRON-SYSTEMS ;  MAGNETIC-FIELD ;  GROUND-STATE ;  ANISOTROPY ;  MECHANISMS ;  TRANSPORT ;  PHASES ;  LIQUID
学科分类: Physics
通讯作者: Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
部门归属: Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The effect of a unidirectional periodic potential on the orientation of the stripe state is studied for the two-dimensional electron system at half-filled high Landau levels. By considering a quantum well with two electric subbands, it is found that the stripe is parallel to the external potential for weak modulation and is orthogonal for strong modulation. In the intermediate range, the orientation of the stripe changes from orthogonal to parallel as the electron density is increased. This result explains the recent experiment performed by Zhu et al. that the anisotropy axis at half-filled high Landau levels rotates by 90degrees by increasing the electron density. It also supports the suggestion that the stripes are pinned by the native surface morphology at the interface of the heterojunction.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000186422600025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13207
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:
Yang, SJ,Yu, Y. Density-induced reorientation of the stripe at half-filled high Landau levels[J]. PHYSICAL REVIEW B,2003,68(15):-.
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