Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements

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	Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements
	Liu, G. T.; Luo, J. L.; Li, Z.; Guo, Y. Q.; Wang, N. L.; Jin, D.; Xiang, T.; Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
刊名	PHYSICAL REVIEW B
	2006
卷号	74 期号:1 页码:-
关键词	Temperature Specific-heat Upper Critical-field Single-crystals Magnetic-field Electronic-structure Lixnbo2 Yba2cu3o7-delta Dependence Transition Linbo2
ISSN号	1098-0121
英文摘要	A high quality superconducting Li0.68NbO2 polycrystalline sample was prepared by deintercalation of Li ions from Li0.93NbO2. The field-dependent resistivity and specific heat were measured down to 0.5 K. The temperature dependence of the upper critical field is determined. A notable specific-heat jump is observed at the superconducting transition temperature T-c similar to 5.0 K at zero field. Below T-c, the electronic specific heat shows a thermal activated behavior and agrees well with the theoretical result for the BCS s-wave superconductor. It indicates that the superconducting pairing in Li0.68NbO2 has s-wave symmetry.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000239426400023
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5955]
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, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Liu, G. T.,Luo, J. L.,Li, Z.,et al. Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements[J]. PHYSICAL REVIEW B,2006,74(1):-.
APA	Liu, G. T..,Luo, J. L..,Li, Z..,Guo, Y. Q..,Wang, N. L..,...&Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.(2006).Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements.PHYSICAL REVIEW B,74(1),-.
MLA	Liu, G. T.,et al."Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements".PHYSICAL REVIEW B 74.1(2006):-.