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题名: Low temperature superfluid response of high-T-c superconductors
作者: Xiang, T ;  Panagopoulos, C ;  Cooper, JR
刊名: INTERNATIONAL JOURNAL OF MODERN PHYSICS B
出版日期: 1998
卷号: 12, 期号:10, 页码:1007-1032
关键词: MICROWAVE SURFACE IMPEDANCE ;  ANISOTROPIC PENETRATION DEPTH ;  A-B PLANE ;  INPLANE ANISOTROPY ;  SINGLE-CRYSTAL ;  COPPER-OXIDE ;  YBA2CU3O7-DELTA ;  DEPENDENCE ;  SUSCEPTIBILITY ;  YBA2CU3O6.95
学科分类: Physics
通讯作者: Xiang, T , Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Madingley Rd, Cambridge CB3 0HE, England.
部门归属: Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Cambridge CB3 0HE, England; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We have reviewed our theoretical and experimental results of the low temperature superfluid response function rho(s)(mu) of high temperature superconductors (HTSC). In clean high-T-c materials the in-plane superfluid density rho(s)(ab) varies linearly with temperature. The slope of this linear T term is found to scale approximately with 1/T-c which, according to the weak coupling BCS theory for a d-wave superconductor, implies that the gap amplitude scales approximately with T-c. A T-5 behavior of the out-of-plane superfluid density rho(s)(c) for clean tetragonal HTSC was predicted and observed experimentally in the single layer Hg-compound HgBa2CuO4+delta. In other tetragonal high-T-c compounds with relatively high anisotropy, such as Hg2Ba2Ca2Cu3O8-delta, rho(s)(c) varies as T-2 due to disorder effects. In optimally doped YBa2Cu3O7-delta, rho(s)(c) varies linearly with temperature at low temperatures, but in underdoped YBa2Cu3O7-delta, rho(s)(c) varies as T-2 at low temperatures; these results are consistent with our theoretical calculations.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000073693800002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12320
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:
Xiang, T,Panagopoulos, C,Cooper, JR. Low temperature superfluid response of high-T-c superconductors[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,1998,12(10):1007-1032.
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