Orbital and spin moments in SmFe2 studied by means of white-x-ray magnetic diffraction

Hayato Miyagawa, Tetsuya Nakamura, Yasuhiro Watanabe, Masahisa Ito, Hiromichi Adachi, Hiroshi Kawata, Susumu Nanao

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3 Citations (Scopus)

Abstract

A magnetic structure of SmFe2 with a Laves phase crystalline structure was investigated by means of white-x-ray magnetic diffraction. The orbital and the spin magnetic form factors of Sm and Fe ions have been obtained as a function of momentum transfer. Their extrapolation to zero momentum transfer, according to the dipole approximation based on an atomic model, has given the values of the spin and the orbital magnetic moments of Sm ions as -2.54 ± 0.55 μB and 2.79 ± 0.61 μB, respectively. This result confirms that the small magnetic moment of Sm ions arises from antiparallel coupling between the spin and the orbital magnetic moments. The spin and the orbital magnetic moments of Fe ions have been also estimated, as 1.13 ± 0.25 μB and 0.19 ± 0.04 μB, respectively.

Original languageEnglish
Pages (from-to)9525-9534
Number of pages10
JournalJournal of Physics Condensed Matter
Volume14
Issue number41
DOIs
Publication statusPublished - 2002 Oct 21
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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