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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
2006
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号74期号:1页码:-
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.
部门归属Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
关键词Temperature Specific-heat Upper Critical-field Single-crystals Magnetic-field Electronic-structure Lixnbo2 Yba2cu3o7-delta Dependence Transition Linbo2
学科领域Physics
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收录类别SCI
WOS记录号WOS:000239426400023
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5955
专题理论物理所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
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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):-.
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