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Fe57 hyperfine field distributions in Fe - 28 per cent Ni - 3 per cent C invar alloy
Authors:U Gonser  S Nasu  W Keune  O Weis
Institution:Fachbereich 12.1, Werkstoffphysik, Universität des Saarlandes, Saarbrücken, Germany
Abstract:The hyperfine field distribution has been measured for Fe - 28 per cent Ni - 3 per cent C alloy at 22 K with a longitudinal external field. Relative Mössbauer line intensities indicate that the effective hyperfine field at Fe57 nuclei lower than 30–40 kOe tends to align perpendicular with a 50 kOe external field which is explicable only by the model of coexistence of antiferromagnetic and ferromagnetic Fe states.
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