Low-temperature magnetic and transport properties of layered SrxCoO2

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	Low-temperature magnetic and transport properties of layered SrxCoO2
	Xiang, T.; Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China; Guo, Y. Q.; Luo, J. L.; Liu, G. T.; Yang, H. X.; Li, J. Q.; Wang, N. L.; Jin, D.
刊名	PHYSICAL REVIEW B
	2006
卷号	74 期号:15 页码:-
关键词	Thermoelectric Properties Superconductivity Gamma-naxcoo2 Naco2o4 Coo2
ISSN号	1098-0121
英文摘要	A series of polycrystalline samples of SrxCoO2 (0.15 <= x <= 0.40) have been prepared by a low-temperature ion exchange technique. These SrxCoO2 samples are isomorphic to NaxCoO2 with the hexagonal structure, but behave differently from NaxCoO2 with the change of cation concentration. For all the samples, the magnetic susceptibility decreases with increasing temperature and shows a Curie-Weiss behavior at high temperatures. The low-temperature magnetic susceptibility can be changed considerably by an applied field. The specific-heat coefficient gamma=C/T of SrxCoO2 as a function of T-2 turns downwards at low temperatures. This is different from the upturn behavior of low-temperature gamma in NaxCoO2. The resistivity of SrxCoO2 changes significantly with the strontium content x. An insulating to metallic crossover or transition is observed with increasing x.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000241723600069
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5889]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Xiang, T.,Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China,Guo, Y. Q.,et al. Low-temperature magnetic and transport properties of layered SrxCoO2[J]. PHYSICAL REVIEW B,2006,74(15):-.
APA	Xiang, T..,Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.,Guo, Y. Q..,Luo, J. L..,Liu, G. T..,...&Jin, D..(2006).Low-temperature magnetic and transport properties of layered SrxCoO2.PHYSICAL REVIEW B,74(15),-.
MLA	Xiang, T.,et al."Low-temperature magnetic and transport properties of layered SrxCoO2".PHYSICAL REVIEW B 74.15(2006):-.