Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/81475
Type: Artigo de periódico
Title: Possible Fulde-Ferrell-Larkin-Ovchinnikov superconducting state in CeCoIn5
Author: Bianchi, A
Movshovich, R
Capan, C
Pagliuso, PG
Sarrao, JL
Abstract: We report specific heat measurements of the heavy fermion superconductor CeCoIn5 in the vicinity of the superconducting critical field H-c2, with magnetic fields in the [110], [100], and [001] directions, and at temperatures down to 50 mK. The superconducting phase transition changes from second to first order for fields above 10 T for Hparallel to[110] and Hparallel to[100]. In the same range of magnetic fields, we observe a second specific heat anomaly within the superconducting state. We interpret this anomaly as a signature of a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) inhomogeneous superconducting state. We obtain similar results for Hparallel to[001], with the FFLO state occupying a smaller part of the phase diagram.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.91.187004
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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