J. Phys. IV France 12 (2002) Pr9-391
Fulde-Ferrell-Larkin-Ovchinnikov state in D-wave superconductorsM. Maki1 and H. Won2
1 Max-Planck-Institute for the Physics of Complex Systems, Dresden, Germany
2 Hallym University, Chunchon, South Korea
Recently a few works have been reported on Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)state in d-wave superconductors in layered compounds. In strong contrast to 3D s-wave superconductors where the stripe like state appears, the square lattice like state is formed in d-wave superconductors in quasi-2D system and in a magnetic field within the conducting plane. Indeed there have been reported that FFLO state in beta-(ET) salts and lambda-(BEDT)_ 2GaC1_ 4,though they are not conclusive. We review our recent works on this subject. We propose NMR, STM or transport measurement will provide a definitive test for FFLO state.
© EDP Sciences 2002