Modification of the isotope effect by the van Hove singularity of electrons on a two-dimensional lattice

被引：21
|
作者：
Szczesniak, R
Mierzejewski, M [1 ]
Zielinski, J
Entel, P
机构：
[1] Silesian Univ, Inst Math, Dept Theoret Phys, PL-40007 Katowice, Poland
[2] Univ Duisburg Gesamthsch, D-47048 Duisburg, Germany
来源：
SOLID STATE COMMUNICATIONS | 2001年 / 117卷 / 06期
关键词：
high-T-c superconductors; electron-phonon interaction;
D O I：
10.1016/S0038-1098(00)00477-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We discuss the problem of phonon-induced superconductivity of electrons on a two-dimensional lattice. Analytical expressions for the superconducting transition temperature and the isotope coefficient have been derived for the case that the Fermi level is close to the van Hove singularity. We have considered the weak- and strong-coupling cases. Our results show that in the presence of the van Hove singularity the isotope coefficient can take on small values despite the fact that superconductivity originates from phonon-induced pairing. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：369 / 371
页数：3
相关论文
共 50 条
  • [21] Quantum Monte Carlo evidence for d-wave pairing in the two-dimensional Hubbard model at a van Hove singularity
    Husslein, T
    Morgenstern, I
    Newns, DM
    Pattnaik, PC
    Singer, JM
    Matuttis, HG
    PHYSICAL REVIEW B, 1996, 54 (22): : 16179 - 16182
  • [22] Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
    Sala, G.
    Stone, M. B.
    Rai, Binod K.
    May, A. F.
    Laurell, Pontus
    Garlea, V. O.
    Butch, N. P.
    Lumsden, M. D.
    Ehlers, G.
    Pokharel, G.
    Podlesnyak, A.
    Mandrus, D.
    Parker, D. S.
    Okamoto, S.
    Halasz, Gabor B.
    Christianson, A. D.
    NATURE COMMUNICATIONS, 2021, 12 (01)
  • [23] Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
    G. Sala
    M. B. Stone
    Binod K. Rai
    A. F. May
    Pontus Laurell
    V. O. Garlea
    N. P. Butch
    M. D. Lumsden
    G. Ehlers
    G. Pokharel
    A. Podlesnyak
    D. Mandrus
    D. S. Parker
    S. Okamoto
    Gábor B. Halász
    A. D. Christianson
    Nature Communications, 12
  • [24] Self-Organized Electronic Extended van Hove Singularity as Lattice Dynamic Confinement Effect
    S. I. Mukhin
    Journal of Superconductivity and Novel Magnetism, 2007, 20 : 599 - 602
  • [25] Van Hove Singularities and Trap States in Two-Dimensional CdSe Nanoplatelets
    Peric, Nemanja
    Lambert, Yannick
    Singh, Shalini
    Khan, Ali Hossain
    Vergel, Nathali Alexandra Franchina
    Deresmes, Dominique
    Berthe, Maxime
    Hens, Zeger
    Moreels, Iwan
    Delerue, Christophe
    Grandidier, Bruno
    Biadala, Louis
    NANO LETTERS, 2021, 21 (04) : 1702 - 1708
  • [26] Wilsonian effective field theory of two-dimensional Van Hove singularities
    Kapustin, Anton
    McKinney, Tristan
    Rothstein, Ira Z.
    PHYSICAL REVIEW B, 2018, 98 (03)
  • [27] Self-organized electronic extended van hove singularity as lattice dynamic confinement effect
    Mukhin, S. I.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2007, 20 (7-8) : 599 - 602
  • [28] Effect of Van Hove singularities on Shiba states in two-dimensional s-wave superconductors
    Uldemolins, Mateo
    Mesaros, Andrej
    Simon, Pascal
    PHYSICAL REVIEW B, 2021, 103 (21)
  • [29] Preeminent Role of the Van Hove Singularity in the Strong-Coupling Analysis of Scanning Tunneling Spectroscopy for Two-Dimensional Cuprate Superconductors
    de Castro, Giorgio Levy
    Berthod, Christophe
    Piriou, Alexandre
    Giannini, Enrico
    Fischer, Oystein
    PHYSICAL REVIEW LETTERS, 2008, 101 (26)
  • [30] Delocalizing effect of the Hubbard repulsion for electrons on a two-dimensional disordered lattice
    Srinivasan, B
    Benenti, G
    Shepelyansky, DL
    PHYSICAL REVIEW B, 2003, 67 (20):
12345