Magnetic Compton Profiles of Ferromagnetic Intermetallic Compound MnSb.

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  • Nakamura Jin
    Department of Applied Physics and Chemistry, The University of Electro–Communications, Chofu 182
  • Takeda Takayoshi
    Department of Applied Physics and Chemistry, The University of Electro–Communications, Chofu 182
  • Asai Kichizo
    Department of Applied Physics and Chemistry, The University of Electro–Communications, Chofu 182
  • Yamada Nobuyoshi
    Department of Applied Physics and Chemistry, The University of Electro–Communications, Chofu 182
  • Tanaka Yoshikazu
    The Institute of Physical and Chemical Research (RIKEN), Wako 351–01
  • Sakai Nobuhiko
    Faculty of Science, Himeji Institute of Technology, Kamigori, Ako, Hyogo 678–12
  • Ito Masahisa
    Faculty of Science, Himeji Institute of Technology, Kamigori, Ako, Hyogo 678–12
  • Koizumi Akihisa
    Faculty of Science, Himeji Institute of Technology, Kamigori, Ako, Hyogo 678–12
  • Kawata Hiroshi
    National Laboratory for High Energy Physics (KEK), Tsukuba 305

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  • Magnetic Compton Profiles of Ferromagne

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Directional magnetic Compton profiles (MCPs) of ferromagnetic intermetallic compound Mn1.1Sb are measured using a circularly polarized synchrotron radiation light source. The overall shape of the derived momentum-density distribution of the magnetic electrons is reproduced well with the Hartree-Fock 3d wavefunction of free Mn atoms except in the low momentum region (| P| 2.0 atomic units). The anisotropy observed in the low momentum region is inexplicable only with the population, determined previously by a polarized neutron measurement, of unpaired electrons in Mn-3d orbitals in the trigonal crystalline field. The present result suggests an additional anisotropic negative polarization of Sb-5p electrons. The anisotropy is discussed using the hydrogen-like atomic Sb-5p wavefunctions.

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