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Critical behavior in the low-energy spin fluctuations in high-T(c) superconductors
Panagopoulos, C; Tallon, JL; Rainford, BD; Xiang, T; Cooper, JR; Scott, CA; Panagopoulos, C , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
2002
发表期刊JOURNAL OF SUPERCONDUCTIVITY
ISSN0896-1107
卷号15期号:5页码:335-338
摘要We study the spin fluctuations of pure and Zn-substituted La(2-x)Sr(x)CuO(4) using the muon spin relaxation technique. Superconductivity is found to coexist with low-frequency spin fluctuations over a large region of the superconducting phase diagram. The characteristic temperature of spin fluctuations detected by muSR decreases with increasing x and vanishes above a critical doping x(c) approximate to 0.19. This value of x(c) coincides with the doping at which the normal state pseudogap extrapolates to zero. These results are discussed in terms of a quantum transition that separates the superconducting phase diagram of high-temperature superconductors into two distinct ground states.
部门归属Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England; Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Cambridge CB3 0HE, England; Ind Res Ltd, Lower Hutt, New Zealand; Univ Southampton, Dept Phys & Astron, Southampton SO07 1BJ, Hants, England; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Copper-oxide Metals Antiferromagnetic Correlations Superfluid Density Neutron-scattering Phase-diagram Normal-state La2-xsrxcuo4 Relaxation Pseudogap Charge
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13422
专题理论物理所1978-2010年知识产出
通讯作者Panagopoulos, C , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
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GB/T 7714
Panagopoulos, C,Tallon, JL,Rainford, BD,et al. Critical behavior in the low-energy spin fluctuations in high-T(c) superconductors[J]. JOURNAL OF SUPERCONDUCTIVITY,2002,15(5):335-338.
APA Panagopoulos, C.,Tallon, JL.,Rainford, BD.,Xiang, T.,Cooper, JR.,...&Panagopoulos, C , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England..(2002).Critical behavior in the low-energy spin fluctuations in high-T(c) superconductors.JOURNAL OF SUPERCONDUCTIVITY,15(5),335-338.
MLA Panagopoulos, C,et al."Critical behavior in the low-energy spin fluctuations in high-T(c) superconductors".JOURNAL OF SUPERCONDUCTIVITY 15.5(2002):335-338.
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