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题名: Evidence of s-wave pairing symmetry in the layered superconductor Li0.68NbO2 from specific heat measurements
作者: Liu, G. T. ;  Luo, J. L. ;  Li, Z. ;  Guo, Y. Q. ;  Wang, N. L. ;  Jin, D. ;  Xiang, T.
刊名: PHYSICAL REVIEW B
出版日期: 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
学科分类: Physics
通讯作者: Luo, JL , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
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
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000239426400023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5955
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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):-.
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