Abstract
The tendency of boron-containing, iron-based glasses to show non monotonic changes of Curie Temperature (T c ) and room temperature saturation magnetization (SM) was examined by magnetic measurements and Mossbauer spectroscopy. Depending on B/Fe ratio theT c and SM first increased up to a maximum value and then steadily decreased, probably because of a shortrange ordering, due to the strong chemical interaction between iron and boron atoms, leading iron atoms in vicinity with Fe-atoms rather than another TM-atom. Finally, the phenomenon becomes analogous to the order-disorder phenomenon in crystalline alloys. An observed unusual crystallization behaviour, consisting of heterogeneous nucleation, was also ascribed to this ordering, which leads to the formation of associations, acting as the first nuclei of crystallization.
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Stergioudis, G.A. On the magnetic and crystallization behaviour of iron based amorphous alloys determined by nuclei quenched in. Z. Physik B - Condensed Matter 93, 1–4 (1993). https://doi.org/10.1007/BF01308801
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DOI: https://doi.org/10.1007/BF01308801