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

doi:10.1126/sciadv.1602055

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 language	English
Article number	e1602055
Journal	Science Advances
Volume	3
Issue number	5
Number of pages	5
ISSN	2375-2548
DOIs	https://doi.org/10.1126/sciadv.1602055
Publication status	Published - 2017

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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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title = "Field-induced magnetic instability within a superconducting condensate",

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*.",

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AU - Mazzone, Daniel Gabriel

AU - Raymond, Stephane

AU - Gavilano, Jorge Luis

AU - Ressouche, Eric

AU - Niedermayer, Christof

AU - Birk, Jonas Okkels

AU - Ouladdiaf, Bachir

AU - Bastien, Gael

AU - Knebel, Georg

AU - Aoki, Dai

AU - Lapertot, Gerard

AU - Kenzelmann, Michel

N1 - 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.

PY - 2017

Y1 - 2017

N2 - 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*.

AB - 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*.

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DO - 10.1126/sciadv.1602055

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Field-induced magnetic instability within a superconducting condensate

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