Quantum phase diagram of antiferromagnetism and superconductivity with a tetracritical point in CeRh In5 in zero magnetic field

M. Yashima, Shinji Kawasaki, H. Mukuda, Y. Kitaoka, H. Shishido, R. Settai, Y. Onuki

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We report on a pressure-temperature phase diagram of antiferromagnetism (AFM) and superconductivity (SC) in CeRh In5 studied by the nuclear-quadrupole- resonance measurements under pressure. It is demonstrated that an AFM phase transition takes place inside the superconducting state. This result reveals that a tetracritical point exists in the phase diagram of AFM and SC at zero magnetic field. The finding of unconventional SC characteristics in the uniformly coexisting phase of AFM and SC suggests that both phases may be mediated by the same magnetic interaction.

Original languageEnglish
Article number020509
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number2
Publication statusPublished - Jul 20 2007
Externally publishedYes


ASJC Scopus subject areas

  • Condensed Matter Physics

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