Penetration depth measurements in MgB2: Evidence for unconventional superconductivity

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	Penetration depth measurements in MgB2: Evidence for unconventional superconductivity
	Inoue, IH; Panagopoulos, C; Rainford, BD; Xiang, T; Scott, CA; Kambara, M; Inoue, IH , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
刊名	PHYSICAL REVIEW B
	2001
卷号	64 期号:9 页码:-
关键词	T-c Superconductors Temperature Yba2cu3o6.95 Density
ISSN号	0163-1829
英文摘要	We have measured the magnetic penetration depth of the recently discovered binary superconductor MgB2 using Mon spin rotation and low-field ac susceptibility. From the damping of the muon precession signal we find the penetration depth at zero temperature is similar to 85 nm. The low-temperature penetration depth shows a quadratic temperature dependence, indicating either the presence of nodes in the gap or that the gap minimum must be smaller than the lowest temperature measured (4.2 K) if the pairing has anisotropic s-wave symmetry.
学科主题	Physics
WOS记录号	WOS:000170726000105
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13675]
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	Inoue, IH , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
推荐引用方式 GB/T 7714	Inoue, IH,Panagopoulos, C,Rainford, BD,et al. Penetration depth measurements in MgB2: Evidence for unconventional superconductivity[J]. PHYSICAL REVIEW B,2001,64(9):-.
APA	Inoue, IH.,Panagopoulos, C.,Rainford, BD.,Xiang, T.,Scott, CA.,...&Inoue, IH , Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England..(2001).Penetration depth measurements in MgB2: Evidence for unconventional superconductivity.PHYSICAL REVIEW B,64(9),-.
MLA	Inoue, IH,et al."Penetration depth measurements in MgB2: Evidence for unconventional superconductivity".PHYSICAL REVIEW B 64.9(2001):-.