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题名: Infrared probe of the electronic structure and charge dynamics of Na0.7CoO2
作者: Wang, NL ;  Zheng, P ;  Wu, D ;  Ma, YC ;  Xiang, T ;  Jin, RY ;  Mandrus, D
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2004
卷号: 93, 期号:23, 页码:-
关键词: NACO2O4 ;  TRANSPORT ;  CRO2
学科分类: Physics
通讯作者: Wang, NL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000225508000067
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13931
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:
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):-.
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