Theory of Josephson effect in strongly correlated electron systems

被引：0
|
作者：
Yokoyama, Takehito [1 ]
Onari, Seiichiro [2 ]
Tanaka, Yukio [2 ]
机构：
[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
[2] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
Josephson effect; Fluctuation exchange approximation; Repulsive Hubbard model; 2-DIMENSIONAL HUBBARD-MODEL; CONSERVING APPROXIMATIONS; SPIN FLUCTUATION; SUPERCONDUCTIVITY; JUNCTIONS;
D O I：
10.1016/j.physc.2009.11.100
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study Josephson effect in superconducting junction based on the repulsive Hubbard model on the square lattice with the fluctuation exchange approximation and the recursive Green's function method. It is shown that the proximity effect is suppressed by the repulsive interaction in the normal metal, and consequently Josephson current in superconductor/normal metal/superconductor junction is reduced due to the strong correlation effect. This is because the imaginary part of the self energy, which facilitates the damping effect, grows with the repulsive interaction. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：S884 / S885
页数：2
相关论文
共 50 条
  • [1] Theory of superconductivity in strongly correlated electron systems
    Chern, Chyh-Hong
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2018, 32 (23):
  • [2] Microscopic theory of strongly correlated electron systems
    Shaginyan, VR
    CONDENSED MATTER THEORIES, VOL 13, 1998, 13 : 197 - 208
  • [3] Theory of superconductivity in strongly correlated electron systems
    Yanase, Y
    Jujo, T
    Nomura, T
    Ikeda, H
    Hotta, T
    Yamada, K
    PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2003, 387 (1-4): : 1 - 149
  • [4] Hall effect in strongly correlated electron systems
    Tran, V. H.
    MATERIALS SCIENCE-POLAND, 2006, 24 (03): : 669 - 673
  • [5] The utility of band theory in strongly correlated electron systems
    Zwicknagl, Gertrud
    REPORTS ON PROGRESS IN PHYSICS, 2016, 79 (12)
  • [6] THEORY OF COLLECTIVE OSCILLATIONS IN STRONGLY CORRELATED ELECTRON-SYSTEMS
    MOLIVER, SS
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (11) : 2225 - 2239
  • [7] Theory of strongly correlated electron systems - Conference summary talk
    Baskaran, G
    PHYSICA B-CONDENSED MATTER, 1996, 223-24 (1-4) : 649 - 652
  • [8] Theory of metal insulator transition in strongly correlated electron systems
    Gulacsi, M.
    Bedell, K.S.
    Integrated Ferroelectrics, 1995, 6 (1-4 pt 1)
  • [9] Magnetism and Kondo effect in strongly correlated electron systems
    Coqblin, B.
    Iglesias, J. R.
    Magalhaes, S. G.
    Perkins, N. B.
    Zimmer, F. M.
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2008, 10 (07): : 1583 - 1594
  • [10] Quantum effective field theory of strongly correlated electron systems
    Suzuki, Masuo
    PHYSICA B-CONDENSED MATTER, 1995, 206 : 180 - 182
12345