Exploring the Fragile Antiferromagnetic Superconducting Phase in CeCoIn5

E. Blackburn, P. Das, M.R. Eskildsen, E.M. Forgan, Mark Laver, C. Niedermayer, C. Petrovic

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    Abstract

    CeCoIn5 is a heavy fermion type-II superconductor showing clear signs of Pauli-limited superconductivity. A variety of measurements give evidence for a transition at high magnetic fields inside the superconducting state, when the field is applied either parallel to or perpendicular to the c axis. When the field is perpendicular to the c axis, antiferromagnetic order develops on the high-field side of the transition. This order remains as the field is rotated out of the basal plane, but the associated moment eventually disappears above 17°, indicating that anomalies seen with the field parallel to the c axis are not related to this magnetic order. We discuss the implications of this finding. © 2010 The American Physical Society
    Original languageEnglish
    JournalPhysical Review Letters
    Volume105
    Issue number18
    Pages (from-to)187001
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2010

    Bibliographical note

    Copyright 2010 American Physical Society. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society

    Keywords

    • Materials and energy storage
    • Superconducting materials

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