Heat capacity of CeRhSi3 under pressure

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

doi:10.1016/j.jmmm.2006.10.031

Heat capacity of CeRhSi₃ under pressure

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

SCI - Physics

Research output: Contribution to journal › Article › peer-review

9 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 T_N = 1.61 K. T_N 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 T_c = 0.45 K by the specific heat measurement, which was previously reported by the electrical resistivity measurement.

Original language	English
Pages (from-to)	340-342
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.031
Publication status	Published - 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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title = "Heat capacity of CeRhSi3 under pressure",

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.",

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T1 - Heat capacity of CeRhSi3 under pressure

AU - Tomioka, F.

AU - Hedo, M.

AU - Umehara, I.

AU - Ono, T.

AU - Uwatoko, Y.

AU - Kimura, N.

AU - Takayanagi, S.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - 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.

AB - 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.

KW - Heat capacity

KW - Heavy-fermion

KW - High pressure

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