Critical behavior in the low-energy spin fluctuations in high-T-c superconductors

doi:10.1023/A:1021061911839

	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
	2002
会议日期	JUN 01-08, 2002
会议地点	GIENS, FRANCE
关键词	COPPER-OXIDE METALS ANTIFERROMAGNETIC CORRELATIONS SUPERFLUID DENSITY NEUTRON-SCATTERING PHASE-DIAGRAM NORMAL-STATE LA2-XSRXCUO4 RELAXATION PSEUDOGAP CHARGE
卷号	15
期号	5
DOI	10.1023/A:1021061911839
页码	335-338
英文摘要	We study the spin fluctuations of pure and Zn-substituted La2-xSrxCuO4 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.
会议录	JOURNAL OF SUPERCONDUCTIVITY
会议录出版者	SPRINGER/PLENUM PUBLISHERS
会议录出版地	NEW YORK
语种	英语
URL标识	查看原文
ISSN号	0896-1107
WOS研究方向	Physics
内容类型	会议论文
源URL	[http://ir.itp.ac.cn/handle/311006/23740]
专题	SCI会议论文
作者单位	1.Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Cambridge CB3 0HE, England 3.Ind Res Ltd, Lower Hutt, New Zealand 4.Univ Southampton, Dept Phys & Astron, Southampton SO07 1BJ, Hants, England 5.Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
推荐引用方式 GB/T 7714	Panagopoulos, C,Tallon, JL,Rainford, BD,et al. Critical behavior in the low-energy spin fluctuations in high-T-c superconductors[C]. 见:. GIENS, FRANCE. JUN 01-08, 2002.