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|Type:||Artigo de periódico|
|Title:||Possible Fulde-Ferrell-Larkin-Ovchinnikov superconducting state in CeCoIn5|
|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 , , and  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 and Hparallel to. 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, with the FFLO state occupying a smaller part of the phase diagram.|
|Editor:||American Physical Soc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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