The Mossbauer Effect of Fe-V and Fe-Cr Sigma Phase

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概要

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• The magnetic properties and bonding natures of the Fe-V and Fe-Cr σ phase were studied by the Mossbauer effect and saturation magnetization measurements. The Mossbauer absorption spectra of the Fe-V σ phase alloys measured at 77 K showed the hyperfine broadening due to overlapping of small internal magnetic fields. Each spectrum was decomposed into four components: The internal magnetic field on one site (I site) is nearly zero, and those on the other three sites (III, IV and V site) vary from 61 kOe to 135 kOe, 16 kOe to 65 kOe and 38 kOe to 103 kOe, respectively, with increasing iron composition. Applying the modified Pauling valence model developed by Mori and Mitsui, the obtained values of the internal fields were reasoned and, therefore, the covalent bonding nature in this structure was confirmed. In the Fe-Cr σ phase containing 46.8 at% Cr, hyperfine broadening was observed at 4.2 K and a similar analysis and discussion are made.

• 社団法人日本物理学会の論文
• 1973-08-05

著者

• Fujita F.

  Department Of Physics Faculty Of Engineering Science Osaka University

• Ino Hiromitsu

  Department Of Physics Faculty Of Engineering Science Osaka University:(present Address) Institute Of

• Ino Hiromitsu

  Department Of Materials Science Faculty Of Engineering Tokyo University

• Moriya Takeshi

  Department Of Physics Faculty Of Engineering Science Osaka University:(present Address) Institute Fo

• Fujita F.

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• SUMITOMO Yoshio

  Department of Physics, Faculty of Engineering Science, Osaka University

• Sumitomo Yoshio

  Department Of Physics Faculty Of Engineering Science Osaka University:(present Address) Ames Laborat

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