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Guo, Y. Q.; Luo, J. L.; Liu, G. T.; Yang, H. X.; Li, J. Q.; Wang, N. L.; Jin, D.; Xiang, T.; Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
Low-temperature magnetic and transport properties of layered SrxCoO2
Source PublicationPHYSICAL REVIEW B
KeywordThermoelectric Properties Superconductivity Gamma-naxcoo2 Naco2o4 Coo2
AbstractA 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.
2006
ISSN1098-0121
Volume74Issue:15Pages:-
Subject AreaPhysics
Indexed BySCI
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5889
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLuo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Guo, Y. Q.,Luo, J. L.,Liu, G. T.,et al. Low-temperature magnetic and transport properties of layered SrxCoO2[J]. PHYSICAL REVIEW B,2006,74(15):-.
APA Guo, Y. Q..,Luo, J. L..,Liu, G. T..,Yang, H. X..,Li, J. Q..,...&Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.(2006).Low-temperature magnetic and transport properties of layered SrxCoO2.PHYSICAL REVIEW B,74(15),-.
MLA Guo, Y. Q.,et al."Low-temperature magnetic and transport properties of layered SrxCoO2".PHYSICAL REVIEW B 74.15(2006):-.
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