KONSCHELLE, François; CAYSSOL, Jérôme; BUZDIN, Alexandre I.

doi:10.1209/0295-5075/79/67001

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KONSCHELLE, François
Centre de physique moléculaire optique et hertzienne [CPMOH]

CAYSSOL, Jérôme
Centre de physique moléculaire optique et hertzienne [CPMOH]

BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]

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Article de revue

Este ítem está publicado en

EPL - Europhysics Letters. 2007-08-07, vol. 71, n° 6, p. 67001

European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing

Resumen en inglés

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.< Leer menos

Palabras clave en inglés

superconductivity

FFLO

fluctuations

modulated phases

inhomogeneous superconductivity

DOI

http://dx.doi.org/10.1209/0295-5075/79/67001

Proyecto ANR

Extreme Conditions Correlated Electrons

Orígen

Importado de Hal

Centros de investigación

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798