Pressure evolution of the ferromagnetic and field re-entrant superconductivity in URhGe

Atsushi Miyake, Dai Aoki, Jacques Flouquet

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Fine pressure (P) and magnetic field (H) tuning on the ferromagnetic superconductor URhGe are reported in order to clarify the interplay between the mass enhancement, low field superconductivity (SC) and field reentrant superconductivity (RSC) by electrical resistivity measurements. With increasing P, the transition temperature and the upper critical field of the low field SC decrease slightly, while the RSC dome drastically shifts to higher fields and shrinks. The spin reorientation field H R also increases. At a pressure P ∼ 1:8 GPa, the RSC has collapsed while the low field SC persists and may disappear only above 4 GPa. Via careful (P,H) studies of the inelastic T 2 resistivity term, it is demonstrated that this drastic change is directly related with the P dependence of the effective mass which determines the critical field of the low field SC and RSC on the basis of triplet SC without Pauli limiting field.

Original languageEnglish
Article number063703
Journaljournal of the physical society of japan
Volume78
Issue number6
DOIs
Publication statusPublished - 2009 Jun

Keywords

  • Effective mass
  • Electrical resistivity
  • Ferromagnetic superconductor
  • Field reentrant superconductivity
  • Pressure
  • URhGe

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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