Superconductivity and the Van Hove Scenario

被引:13
|
作者
Bok, Julien [1 ]
Bouvier, Jacqueline [1 ]
机构
[1] ESPCI Paris Tech, F-75231 Paris 05, France
关键词
Superconductivity; High T-C; Van Hove scenario; Density of states; HIGH-TEMPERATURE SUPERCONDUCTIVITY; CRISTALLINE DES COMPOSES; T-C SUPERCONDUCTORS; NORMAL-STATE; LATTICE INSTABILITY; FERMI-SURFACE; V3SI TYPE; VANHOVE SINGULARITY; BASSE TEMPERATURE; TIGHT-BINDING;
D O I
10.1007/s10948-012-1434-3
中图分类号
O59 [应用物理学];
学科分类号
摘要
We give a review of the role of the Van Hove singularities in superconductivity. Van Hove singularities (VHs) are a general feature of low-dimensional systems. They appear as divergences of the electronic density of states (DOS). Jacques Friedel and Jacques Labb, were the first to propose this scenario for the A15 compounds. In NbTi, for example, Nb chains give a quasi-1D electronic structure for the d-band, leading to a VHs. They developed this model and explained the high T (C) and the many structural transformations occurring in these compounds. This model was later applied by Jacques Labb, and Julien Bok to the cuprates and developed by Jacqueline Bouvier and Julien Bok. The high T (C) superconductors cuprates are quasi-bidimensional (2D) and thus lead to the existence of Van Hove singularities in the band structure. The presence of VHs near the Fermi level in the cuprates is now well established. In this context we show that many physical properties of these materials can be explained, in particular the high critical temperature T (C), the anomalous isotope effect, the superconducting gap and its anisotropy, and the marginal Fermi liquid properties, they studied these properties in the optimum and overdoped regime. These compounds present a topological transition for a critical hole doping pa parts per thousand 0.21 hole per CuO2 plane.
引用
收藏
页码:657 / 667
页数:11
相关论文
共 50 条
  • [1] Superconductivity and the Van Hove Scenario
    Julien Bok
    Jacqueline Bouvier
    [J]. Journal of Superconductivity and Novel Magnetism, 2012, 25 : 657 - 667
  • [2] Superconductivity in cuprates, the van Hove scenario
    Bok, J
    Bouvier, J
    [J]. SUPERCONDUCTING SUPERLATTICES II: NATIVE AND ARTIFICIAL, 1998, 3480 : 245 - 249
  • [3] Superconductivity in Cuprates, the van Hove Scenario
    J. Bok
    J. Bouvier
    [J]. Journal of Superconductivity, 2000, 13 : 781 - 787
  • [4] Superconductivity in cuprates, the van Hove scenario
    Bok, J
    Bouvier, J
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1999, 13 (29-31): : 3425 - 3430
  • [5] Superconductivity in cuprates, the van Hove scenario
    Bok, J
    Bouvier, J
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 1999, 12 (01): : 27 - 31
  • [6] Superconductivity in cuprates, the van Hove scenario
    Bok, J
    Bouvier, J
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 2000, 13 (05): : 781 - 787
  • [7] Superconductivity in Cuprates, the Van Hove Scenario
    J. Bok
    J. Bouvier
    [J]. Journal of Superconductivity, 1999, 12 : 27 - 31
  • [8] Superconductivity in cuprates, the van Hove scenario: A review
    Bouvier, J
    Bok, J
    [J]. GAP SYMMETRY AND FLUCTUATIONS IN HIGH-T(C) SUPERCONDUCTORS, 1998, 371 : 37 - 54
  • [9] Van Hove scenario of high-Tc superconductivity
    Gonzalez, J
    [J]. STRONGLY CORRELATED MAGNETIC AND SUPERCONDUCTING SYSTEMS, 1997, 478 : 305 - 323
  • [10] BCS superconductivity in the van Hove scenario in s and d waves
    Ghosh, A
    [J]. BRAZILIAN JOURNAL OF PHYSICS, 1999, 29 (03) : 483 - 488