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Journal Articles Science Advances Year : 2017

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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Dates and versions

hal-01691808 , version 1 (24-01-2018)

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Daniel Gabriel Mazzone, Stephane Raymond, Jorge Luis Gavilano, Eric Ressouche, Christof Niedermayer, et al.. Field-induced magnetic instability within a superconducting condensate. Science Advances , 2017, 3 (5), 5 p. ⟨10.1126/sciadv.1602055⟩. ⟨hal-01691808⟩
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