2008/08/18 by Atsushi Miyake, Dai Aoki, Jacques Flouquet · 3 citations
Physics and Astronomy · #Critical field #Electrical resistivity and conductivity #Ferromagnetism #Field (mathematics) #Magnetization #Phase diagram #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Residual resistivity #Superconductivity #Topological Materials and Phenomena #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1143/jpsj.77.094709
6pages, 7 figures, to be published in J. Phys. Soc. Jpn. No.9 (2008)
arxiv created 2008/08/18 · openalex publication_date 2008/09/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
High quality single crystals of a ferromagnetic superconductor URhGe were successfully grown. The electrical resistivity was measured for the field along b-axis in the orthorhombic crystal structure in order to study precisely its field re-entrant superconductivity which occurs in the vicinity of the field H\rm R, where the easy magnetization switches from c to b-axis. The field re-entrant superconductivity of URhGe is analyzed with special focus on its dependence with the value of residual resistivity ρ0 and the coefficient A of T2 term of the resistivity. The experimental results are well explained by a crude model related with the field dependence of the effective mass m^∗, where the corresponding critical temperature Tsc(m^∗) and the upper critical field H\rm c2 are strongly enhanced. Discussion is made on the interplay between magnetic and superconducting phase diagram as well as the link between Tsc and A in other heavy fermion superconductors.