Fulde-Ferrell-Larkin-Ovchinnikov state in d-wave superconductors

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:272

Article; Proceedings Paper

Won, H ; Haas, S ; Maki, K

关键词: Fulde-Ferrell-Larkin-Ovchinnikov state;    d-wave superconductivity;    density of states;   

DOI  :  10.1016/j.jmmm.2004.03.027

来源: Elsevier

【 摘 要 】

Recent reports of anomalous low-temperature properties at high magnetic fields Of kappa-(BEDT-TFF)(2)Cu(NCS)(2) and lambda-(BEDTS)(2)GaCl4 have sparked a renewed interest in possible Fulde-Ferrell-Larkwin-Ovchinnikov (FFLO) states in d-wave superconductors. In contrast to conventional three-dimensional s-wave superconductors, there is evidence that FFLO states are realizable for quasi-two-dimensional anisotropic superconductors in a magnetic field parallel to the conducting plane. In this paper, the quasiparticle density of states N(E) are studied in two-dimensional d(xy)-wave and dx(2)-y(2)-wave superconductors. The energy dependence of N(E) provides clear signatures of the FFLO state. (C) 2004 Elsevier B.V. All rights reserved.

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