Orbital and spin moments in the ferromagnetic superconductor URhGe by x-ray magnetic circular dichroism

0482162 - FZÚ 2018 RIV US eng J - Článek v odborném periodiku
Wilhelm, F. - Sanchez, J.P. - Brison, J.P. - Aoki, D. - Shick, Alexander - Rogalev, A.
Orbital and spin moments in the ferromagnetic superconductor URhGe by x-ray magnetic circular dichroism.
Physical Review B. Roč. 95, č. 23 (2017), s. 1-10, č. článku 235147. ISSN 2469-9950. E-ISSN 2469-9969
Grant CEP: GA ČR GA15-07172S
Institucionální podpora: RVO:68378271
Klíčová slova: ferromagnetic superconductors * density functional theory
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.813, rok: 2017

The ferromagnetic superconductor URhGe has been investigated by high field magnetic circular dichroism (XMCD) at the U M4,5, Rh L2,3, and Ge K edges at 2.1 K and at applied fields up to 17 T. The XMCD performed at the M4,5 absorption edges allows us to determine the spectroscopic branching ratio and the 5f electron contribution to the valence spin-orbit interaction. Combination with polarized neutron diffraction results allows us to derive the individual U orbital and spin moments and the magnetic-dipole contribution ⟨Tz⟩. The results are discussed against predictions of the electronic band structure calculations by the density functional theory plus Coulomb U, including spin-orbit coupling.
Trvalý link: http://hdl.handle.net/11104/0277556