Europhys. Lett.
Volume 66, Number 6, June 2004
Page(s) 833 - 839
Section Condensed matter: electronic structure, electrical, magnetic, and optical properties
Published online 01 June 2004
Europhys. Lett., 66 (6) , pp. 833-839 (2004)
DOI: 10.1209/epl/i2004-10037-5

Nature of the Fulde-Ferrell-Larkin-Ovchinnikov phases at low temperature in 2 dimensions

C. Mora and R. Combescot

Laboratoire de Physique Statistique, Ecole Normale Supérieure 24 rue Lhomond, 75231 Paris Cedex 05, France

(Received 5 January 2004; accepted 16 April 2004)

We investigate, mostly analytically, the nature of the Fulde-Ferrell-Larkin-Ovchinnikov superfluid phases for an isotropic two-dimensional superconductor, which is relevant for the experimental observation of these phases. We show that there is, in the low-temperature range, a cascade of transitions toward order parameters with ever increasing complexity.

74.20.Fg - BCS theory and its development.
74.25.Dw - Superconductivity phase diagrams.
74.70.Kn - Organic superconductors.

© EDP Sciences 2004