Anomalous behavior of the upper-critical-field in heavy-fermion superconductor CeRhSi3

Tetsuya Sugawara, Noriaki Kimura, Haruyoshi Aoki, Florence Lévy, Ilya Sheikin, Taichi Terashima

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We report the temperature dependence of the upper-critical-field B c2(T) with the fields along the tetragonal c-axis of the pressure-induced heavy-fermion superconductor CeRhSi3 under several pressures. A bend in the Bc2(T) curve emerges at a pressure at which the antiferromagnetic order disappears. Simultaneously, an anomaly in the electrical resistivity in the normal state appears above the magnetic.eld of the bend point. Moreover, the initial slope [-dBc2(T)/dT] Tc is abruptly enhanced above the pressure at which the bend emerges. The anomalous behavior of Bc2(T) is probably related to the antiferromagnetism and the anomaly in the normal state.

Original languageEnglish
Article number063701
Journaljournal of the physical society of japan
Volume79
Issue number6
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Antiferromagnetism
  • CeRhSi
  • Heavy-fermion superconductor
  • Noncentrosymmetric
  • Quantum phase transition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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