High pressure phase diagram of the non-centrosymmetric antiferromagnet CeCoGe 3

Georg Knebel, Dai Aoki, Gerard Lapertot, Bernard Salce, Jacques Flouquet, Tomoya Kawai, Hiroshi Muranaka, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

We present a detailed study of the high pressure phase diagram of the non-centrosymmetric antiferromagnet CeCoGe3 by measurements of the ac calorimetry in a diamond anvil pressure cell. Under high pressure the magnetic ordering temperature shows a step like decrease due to various successive magnetic phases under high pressure. The magnetic order disappears at a critical pressure of pcfa 5.5 GPa. Around the critical pressure bulk superconductivity has been detected in the ac calorimetric measurement.

Original languageEnglish
Article number074714
Journaljournal of the physical society of japan
Volume78
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1
Externally publishedYes

Keywords

  • CeCoGe3
  • Heavy fermion superconductivity
  • Non-centrosymmetry
  • Quantum critical point

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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