Anomalous Spin Density Distribution in CeB6.

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  • Saitoh Masahiro
    Department of Physics, Aoyama Gakuin University, Setagaya-ku, Tokyo 157-8572
  • Okada Noriko
    Department of Applied Physics, Nagoya University, Nagoya 464-8603
  • Nishibori Eiji
    Department of Applied Physics, Nagoya University, Nagoya 464-8603
  • Takagiwa Hiroyuki
    Department of Physics, Aoyama Gakuin University, Setagaya-ku, Tokyo 157-8572
  • Yokoo Tetsuya
    Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801
  • Nishi Masakazu
    Neutron Scattering Laboratory, ISSP, University of Tokyo, Tokai, Ibaraki 319-1106
  • Kakurai Kazuhisa
    Advanced Science Research Center, Japan Atomic Energy Research Institute (JAERI), Tokai, Ibaraki 319-1195
  • Kunii Satoru
    Department of Physics, Tohoku University, Sendai, 980-8578
  • Takata Masaki
    Department of Applied Physics, Nagoya University, Nagoya 464-8603
  • Sakata Makoto
    Department of Applied Physics, Nagoya University, Nagoya 464-8603
  • Akimitsu Jun
    Department of Physics, Aoyama Gakuin University, Setagaya-ku, Tokyo 157-8572

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Other Title
  • Anolmalous Spin Density Distribution in CeB6
  • Anomalous Spin Density Distribution in CeB<sub>6</sub>

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Abstract

Here, we present, for the first time, the spin density distribution of CeB6, isostructural with CaB6, deduced by the maximum entropy method (MEM) using polarized neutron diffraction (PND) data. Surprisingly, it reveals the presence of significant amounts of localized spin moment at non atomic sites between the nearest-neighbor boron atoms and the center of the triangle surface in the B6 octahedron network, in addition to the negative spin moment in the center of the B6 octahedron.

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