Field-induced magnetic instability within a superconducting condensate

Daniel Gabriel Mazzone, Stephane Raymond, Jorge Luis Gavilano, Eric Ressouche, Christof Niedermayer, Jonas Okkels Birk, Bachir Ouladdiaf, Gael Bastien, Georg Knebel, Dai Aoki, Gerard Lapertot, Michel Kenzelmann

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    Abstract

    The application of magnetic fields, chemical substitution, or hydrostatic pressure to strongly correlated electron materials can stabilize electronic phases with different organizational principles. We present evidence for a fieldinduced quantum phase transition, in superconducting Nd0.05Ce0.95CoIn5, that separates two antiferromagnetic phases with identical magnetic symmetry. At zero field, we find a spin-density wave that is suppressed at the critical field mu H-0* = 8 T. For H > H*, a spin-density phase emerges and shares many properties with the Q phase in CeCoIn5. These results suggest that the magnetic instability is not magnetically driven, and we propose that it is driven by a modification of superconducting condensate at H*.
    Original languageEnglish
    Article numbere1602055
    JournalScience Advances
    Volume3
    Issue number5
    Number of pages5
    ISSN2375-2548
    DOIs
    Publication statusPublished - 2017

    Bibliographical note

    Copyright © 2017, The Authors
    This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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