Anomalous fluctuation regimes at the FFLO transition
BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
< Réduire
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
Langue
en
Article de revue
Ce document a été publié dans
EPL - Europhysics Letters. 2007-08-07, vol. 71, n° 6, p. 67001
European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing
Résumé en anglais
Recently some experimental evidences have been obtained in favour of the existence of the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state in heavy-fermion superconductor CeCoIn_{5} and organic ...Lire la suite >
Recently some experimental evidences have been obtained in favour of the existence of the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state in heavy-fermion superconductor CeCoIn_{5} and organic superconductor -(BETS)_{2}FeCl_{4}. However the unambiguous identification of FFLO state remains very difficult. We present the theoretical studies of the Gaussian fluctuations near the tricritical point (where the FFLO modulation appears) and demonstrate that the behavior of the fluctuational specific heat, paraconductivity and diamagnetism is qualitatively different from the usual superconducting transition. Special values of the critical exponent and the crossovers between different fluctuational regimes may provide a unique test for the FFLO state appearance.< Réduire
Mots clés en anglais
superconductivity
FFLO
fluctuations
modulated phases
inhomogeneous superconductivity
Project ANR
Extreme Conditions Correlated Electrons
Origine
Importé de halUnités de recherche