Coexistence of antiferromagnetism and superconductivity in CeRh In5 under high pressure and magnetic field

G. Knebel, D. Aoki, D. Braithwaite, B. Salce, J. Flouquet

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113 Citations (Scopus)

Abstract

New light is shed on the interplay between antiferromagnetism and superconductivity by a detailed study of the phase diagram of CeRh In5 under high pressure and magnetic field using ac calorimetry. In zero field, the antiferromagnetic order vanishes suddenly above pc =2 GPa leading to a pure superconducting ground state. An inhomogeneous superconducting phase transition is found below pc. Above pc, the application of an external magnetic field H ab induces a second transition, which suggests the reentrance of antiferromagnetism, its coexistence with superconductivity, and also the important role of the vortices. This field-induced supplementary state vanishes around the expected quantum critical point, which will occur in the absence of superconductivity.

Original languageEnglish
Article number020501
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number2
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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