On σ-Δ anticorrelation in high-temperature superconductors

被引：0
作者：
Gulian, A. M. [1 ]
Harutyunyan, A. R. [2 ]
机构：
[1] Phys Art Frontiers, Ashton, MD 20861 USA
[2] Honda Res Inst USA Inc, Columbus, OH 43212 USA
来源：
PHYSICS LETTERS A | 2009年 / 373卷 / 37期
关键词：
Superconductivity mechanisms; Tunneling spectroscopy; Normal conductivity; BCS model; High-T(c) superconductors;
D O I：
10.1016/j.physleta.2009.07.036
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recently, the application of the BCS-type pairing mechanism to a Bi-cuprate system has been questioned based on the experimentally observed anticorrelation between the values of the superconducting gap A and normal conductivity a. Here we analyze similar data available for the lead-based alloys Pb(1-x)Bi(x) (x << 1), which definitely belong to the BCS-type superconductors. Our analysis reveals exactly same kind of anticorrelation. In view of our results, the anticorrelation arguments against the applicability of the BCS-type model to the cuprate high-T(c) superconductors should be relaxed. (C) 2009 Elsevier B.V. All rights reserved.
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页码：3392 / 3394
页数：3
相关论文
共 17 条
  • [1] Abrikosov A. A., 2017, FUNDAMENTALS THEORY
  • [2] ALEN PB, 1982, SOLID STATE PHYS
  • [3] Aschcroft N., 1976, Solid State Physics
  • [4] Bennemann K. H., 2003, PHYS SUPERCONDUCTORS, V1
  • [5] BENNEMANN KH, 2003, PHYS SUPERCONDUCTORS, V2
  • [6] Brooks J., 2007, Handbook of high-temperature superconductivity: Theory and experiment
  • [7] PROPERTIES OF BOSON-EXCHANGE SUPERCONDUCTORS
    CARBOTTE, JP
    [J]. REVIEWS OF MODERN PHYSICS, 1990, 62 (04) : 1027 - 1157
  • [8] ELIASHBERG GM, 1963, SOV PHYS JETP-USSR, V16, P780
  • [9] ELIASHBERG GM, 1960, SOV PHYS JETP-USSR, V11, P696
  • [10] Gulian ArmenM., 1999, Nonequilibrium electrons and phonons in superconductors
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