Mössbauer-Effect Studies of Iron-Tin Alloys

Georg Trumpy, Erik Both, C. Djéga-Mariadassou, P. Lecocq

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Solid solutions FeSn and the compounds Fe3Sn, Fe5Sn3, Fe3Sn2, FeSn, and FeSn2 have been studied by the Mössabauer effect in both Fe and Sn nuclei. Also, standard x-ray diffraction and magnetization studies were performed. The magnetic hyperfine (hf) fields in the Fe and Sn components are not, in general, proportional to the magnetic moments. It is found that two simple relations containing the coordination numbers can be used within a wide range to describe the variations of these fields as a function of composition. The collected results indicate that the magnetic hf field at the iron nucleus is rather insensitive to the conduction-electron polarization in these alloys. The isomer shifts are linearly related to the number of Fe-Sn bonds in such a way that bonding reduces the electron densities at both nuclei. The bonding is covalentlike and predominantly unpolarized.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Issue number9
Pages (from-to)3477-3490
Publication statusPublished - 1970

Bibliographical note

Copyright (1970) by the American Physical Society.

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