High-field moment polarization in the itinerant ferromagnet URhSi

William Knafo (1) , T.D. Matsuda , F. Hardy , D. Aoki , J. Flouquet (2)

1 LNCMI-T - Laboratoire national des champs magnétiques intenses - Toulouse
2 IMAPEC - Instrumentation, Material and Correlated Electrons Physics

We report a high-magnetic-field study of the itinerant ferromagnet URhSi. Magnetization and electrical resistivity were measured under magnetic fields μ 0 H up to 58 T applied along the directions a, b, and c of the orthorhombic structure and temperatures T ranging from 1.5 to 50 K. For H b, pseudo-metamagnetism at μ 0 H m 30-40 T is associated with a broad step in the magnetization and a maximum in the resistivity. The properties of URhSi are discussed and compared with those of the isostructural superconducting ferromagnets URhGe and UCoGe and of the superconducting paramagnet UTe 2 .

Mots clés: numbers: 71.27.+a; 74.70.Tx; 75.30.Kz; 75.30.Mb

Domaines: Supraconductivité [cond-mat.supr-con]

William Knafo, T.D. Matsuda, F. Hardy, D. Aoki, J. Flouquet. High-field moment polarization in the itinerant ferromagnet URhSi. Physical Review B, 2019, 100, pp.094421. ⟨10.1103/PhysRevB.100.094421⟩. ⟨hal-02443313⟩