Heat capacity of CeRhSi3 under pressure

F. Tomioka, M. Hedo, I. Umehara, T. Ono, Y. Uwatoko, N. Kimura, S. Takayanagi

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10 Citations (Scopus)

Abstract

We report measurements of the heat capacity of pressure-induced superconductivity in an antiferromagnet CeRhSi3 under pressure up to P = 1.34 GPa. CeRhSi3 crystallizes into the tetragonal BaNiSn3-type structure without inversion center, which is the same as newly discovered superconductor CePt3 Si. At ambient pressure a pronounced anomaly in the specific heat is observed, indicating the transition to an antiferromagnetically ordered state at TN = 1.61 K. TN increases with increasing pressure below around P = 0.75 GPa and then decrease with increasing pressure. At P = 1.34 GPa, we confirmed the superconductivity at Tc = 0.45 K by the specific heat measurement, which was previously reported by the electrical resistivity measurement.

Original languageEnglish
Pages (from-to)340-342
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - 2007 Mar 1

Keywords

  • Heat capacity
  • Heavy-fermion
  • High pressure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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