Journal article Open Access

Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in C e C o I n 5

Bianchi, A.; Movshovich, R.; Capan, C.; Pagliuso, P. G.; Sarrao, J. L.

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  <identifier identifierType="URL"></identifier>
      <creatorName>Bianchi, A.</creatorName>
      <creatorName>Movshovich, R.</creatorName>
      <creatorName>Capan, C.</creatorName>
      <creatorName>Pagliuso, P. G.</creatorName>
      <givenName>P. G.</givenName>
      <creatorName>Sarrao, J. L.</creatorName>
      <givenName>J. L.</givenName>
    <title>Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in C e C o I n 5</title>
    <date dateType="Issued">2003-10-01</date>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
    <alternateIdentifier alternateIdentifierType="url"></alternateIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/physrevlett.91.187004</relatedIdentifier>
    <rights rightsURI="">Creative Commons Zero v1.0 Universal</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
    <description descriptionType="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 H parallel [110] and H parallel [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 H parallel [001], with the FFLO state occupying a smaller part of the phase diagram.</description>
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