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题名: Angular-dependent magnetoresistance oscillations in Na0.48CoO2 single crystals
作者: Hu, F ;  Liu, GT ;  Luo, JL ;  Wu, D ;  Wang, NL ;  Xiang, T
刊名: PHYSICAL REVIEW B
出版日期: 2006
卷号: 73, 期号:21, 页码:-
关键词: PHASE-TRANSITIONS ;  NA0.5COO2 ;  NAXCOO2
学科分类: Physics
通讯作者: Hu, F , 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; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
英文摘要: We have measured the c-axis angular-dependent magnetoresistance (AMR) of a Na0.48CoO2 single crystal, with a magnetic field of 10 T rotating within Co-O planes. Below the metal-insulator transition temperature at 40 K, the AMR is dominated by a twofold oscillation due to the charge ordering. The fourfold and sixfold oscillations in AMR become pronounced below 25 K. The presence of this fourfold oscillation is consistent with the picture proposed by Choy (cond-mat/0502164) that the Co lattice will split into two orthogonal sublattices with one occupied by Co3+ ions and the other by Co4+ ions in low temperatures. Embedded in these orthogonal sublattices, a hexagonal lattice, formed by Co4+ spins, leads to the sixfold oscillation in AMR.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000238696200025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5969
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:
Hu, F,Liu, GT,Luo, JL,et al. Angular-dependent magnetoresistance oscillations in Na0.48CoO2 single crystals[J]. PHYSICAL REVIEW B,2006,73(21):-.
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