Calorimetric Evidence for a Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in the Layered Organic Superconductor κ$-(BEDT-TTF)$_2$Cu(NCS)$_2$

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dc.creatorLortz, R.
dc.creatorWang, Y.
dc.creatorDemuer, A.
dc.creatorBöttger, P. H. M.
dc.creatorBergk, B.
dc.creatorZwicknagl, G.
dc.creatorNakazawa, Y.
dc.creatorWosnitza, J.
dc.date2007-06-25
dc.date2007-10-30
dc.date.accessioned2026-07-07T08:38:59Z
dc.date.available2026-07-07T08:38:59Z
dc.descriptionThe specific heat of the layered organic superconductor $κ$-% (BEDT-TTF)$_2$Cu(NCS)$_2$, where BEDT-TTF is bisethylenedithio-% tetrathiafulvalene, has been studied in magnetic fields up to 28 T applied perpendicular and parallel to the superconducting layers. In parallel fields above 21 T, the superconducting transition becomes first order, which signals that the Pauli-limiting field is reached. Instead of saturating at this field value, the upper critical field increases sharply and a second first-order transition line appears within the superconducting phase. Our results give strong evidence that the phase, which separates the homogeneous superconducting state from the normal state is a realization of a Fulde-Ferrell-Larkin-Ovchinnikov state.
dc.description4pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0706.3584
dc.identifierhttp://arxiv.org/abs/0706.3584
dc.identifierPhys. Rev. Lett. 99, 187002 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.187002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140929
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleCalorimetric Evidence for a Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in the Layered Organic Superconductor κ$-(BEDT-TTF)$_2$Cu(NCS)$_2$
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