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Infrared probe of the electronic structure and charge dynamics of Na0.7CoO2
Wang, NL; Zheng, P; Wu, D; Ma, YC; Xiang, T; Jin, RY; Mandrus, D; Wang, NL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
2004
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号93期号:23页码:-
摘要We present measurements of the optical spectra on Na0.7CoO2 single crystals. The optical conductivity shows two broad interband transition peaks at 1.6 eV and 3.1 eV, and a weak midinfrared peak at 0.4 eV. The intraband response of conducting carriers is different from that of a simple Drude metal. A peak at low but finite frequency is observed, which shifts to higher frequencies with increasing temperature, even though the dc resistivity is metallic. The origin of the interband transitions and the low-frequency charge dynamics have been discussed and compared with other experiments.
部门归属Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
关键词Naco2o4 Transport Cro2
学科领域Physics
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收录类别SCI
WOS记录号WOS:000225508000067
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被引频次:40[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/311006/13931
专题理论物理所1978-2010年知识产出
通讯作者Wang, NL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
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Wang, NL,Zheng, P,Wu, D,et al. Infrared probe of the electronic structure and charge dynamics of Na0.7CoO2[J]. PHYSICAL REVIEW LETTERS,2004,93(23):-.
APA Wang, NL.,Zheng, P.,Wu, D.,Ma, YC.,Xiang, T.,...&Wang, NL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China..(2004).Infrared probe of the electronic structure and charge dynamics of Na0.7CoO2.PHYSICAL REVIEW LETTERS,93(23),-.
MLA Wang, NL,et al."Infrared probe of the electronic structure and charge dynamics of Na0.7CoO2".PHYSICAL REVIEW LETTERS 93.23(2004):-.
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