Transverse and longitudinal magnetic-field responses in the Ising ferromagnets URhGe, UCoGe, and UGe2

F. Hardy, D. Aoki, C. Meingast, P. Schweiss, P. Burger, H. V. Löhneysen, J. Flouquet

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35 Citations (Scopus)

Abstract

The field dependence of the electronic specific heat γ(H) of URhGe is determined using temperature-dependent magnetization measurements and Maxwell's relation for all three orthorhombic directions. A large (40%) enhancement of γ(H) is found at the reorientational transition HR for fields applied along the b hard axis, which we argue occurs when the field-induced moment is of the same size as the zero-field ordered moment M0. Fields applied along the easy direction, on the other hand, lead to a rapid suppression of γ(H). We emphasize that this behavior is also applicable to the closely related ferromagnetic superconductors UCoGe and UGe2 and discuss implications for the field-induced/enhanced superconductivity in these materials.

Original languageEnglish
Article number195107
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number19
DOIs
Publication statusPublished - 2011 May 5
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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