Mossbauer Study of Fe2+ in the Low Temperature Phase of Fe3O4

  • Umemura Shizuo
    Department of Physics, Faculty of Science, The University of Tokyo
  • Iida Shuichi
    Department of Physics, Faculty of Science, The University of Tokyo

書誌事項

タイトル別名
  • Mössbauer Study of Fe<SUP>2+</SUP> in the Low Temperature Phase of Fe<SUB>3</SUB>O<SUB>4</SUB>
  • Mossbauer Study of Fe2 + in the Low Tem

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Mössbauer spectra of the low temperature phase of single crystal magnetite were measured with a magnetic field along various directions in (1\bar10) plane after cooled in the magnetic field along [112]. Measured spectra were found to be sensitive to the direction of the applied magnetic field. As the result of detailed analysis two kinds of Fe2+ ions (Fe2+–I and II) were clearly recognized and the principal Z-axis of EFG was found to be along [100] or [010] for Fe2+–I and [001] for Fe2+–II. Since the observed anisotropy of the internal magnetic field is well described by EFG observed, angular momentum of each Fe2+ ion is suggested to be quenched.

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