Superconductivity in the Ferromagnet URhGe under uniaxial pressure

Abstract

Uniaxial pressure applied in the b crystallographic direction perpendicular to spontaneous magnetization in heavy fermion ferromagnet URhGe strongly stimulates superconductivity in this compound. The phenomenological approach allows point out two mechanisms of superconducting temperature raising. They originates from stimulation by the uniaxial stress both intraband and interband amplitudes of triplet Cooper pairing. The phenomenon of reentrant superconductivity under magnetic field along b-axis is also strongly sensitive to the uniaxial stress in the same direction. The uniaxial stress accelerates suppression the Curie temperature by the transversal magnetic field. The emergence of the first order transition to the paramagnetic state occurs at much lower field than in the absence of uniaxial stress.

arXiv comment6 pages, 1 figure

References in corpus (6)

• Superconductivity and Ferromagnetic Quantum Criticality in Uranium Compounds
• Superconductivity in Uranium Ferromagnets
• Transverse and Longitudinal Magnetic-Field Responses in the Ising Ferromagnets URhGe, UCoGe and UGe2
• Pressure Evolution of the Ferromagnetic and Field Re-entrant Superconductivity in URhGe
• Magnetic field dependence of pairing interaction in ferromagnetic superconductors with triplet pairing
• Reentrant superconductivity in URhGe

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• Ground-state phase diagram of the $S=1$ one-dimensional Kondo lattice model with a uniaxial anisotropy under transverse fields
• Novel universality class for the ferromagnetic transition in the low carrier concentration systems UTeS and USeS exhibiting large negative magnetoresistance