Abstract
Mn20−x Fex alloys (x=1–6.4) with β-Mn structure are studied by Mössbauer spectroscopy. The electric field gradient tensor for the crystallographically nonequivalent sites 8(c) and 12(d) are calculated. Partial Mössbauer spectra are identified, and the 57Fe hyperfine-interaction parameters determined. Iron atoms substituting for manganese in the Mn20−x Fex system exhibit strong preference for occupying 8(c) sites. With increasing iron concentration, the longrange order parameter in the Fe atom arrangement increases, and the degree of order, decreases.
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Fiz. Tverd. Tela (St. Petersburg) 39, 1437–1442 (August 1997)
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Vinogradova, A.S., Ilyushin, A.S., Nikanorova, I.A. et al. Mössbauer studies of the atomic distributions and hyperfine interactions in Mn-Fe alloys with β-Mn structure. Phys. Solid State 39, 1276–1280 (1997). https://doi.org/10.1134/1.1130060
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DOI: https://doi.org/10.1134/1.1130060