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Ion beam induced phase transformation in Fe–Mn bilayers: a Mössbauer study

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Abstract

Ion‐beam mixing of Fe–Mn bilayers induced by 100 keV krypton ions in the dose range (0.1-15)×1015 ions/cm2has been studied by means of conversion electron Mössbauer spectroscopy and X‐ray diffraction. The results indicate that a dose of about 1 ×1015 Kr+/cm2 is sufficient to induce an appreciable mixing between the two atomic species. The α-Fe(Mn)solid solution presents a maximum at this dose, while at higher doses also the ɛ and γFe–Mn phases are formed in an appreciable amount. Heating of irradiated samples evidences the metastable character of ɛ phase and favours the growth of the terminal structures γ-Fe(Mn) and α-Mn(Fe) of the Fe–Mn equilibrium phase diagram.

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Carpene, E., Caccavale, F., Gratton, L. et al. Ion beam induced phase transformation in Fe–Mn bilayers: a Mössbauer study. Hyperfine Interactions 113, 419–427 (1998). https://doi.org/10.1023/A:1012604606759

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  • DOI: https://doi.org/10.1023/A:1012604606759

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