Mössbauer Study of BiF3-Type Ordering in Metastable FeGa Alloys

Abstract
Metastable Fe alloys containing up to 25 at.% Ga, obtained by rapidly quenching from the liquid state, have been studied using the Mössbauer effect. A least‐squares analysis of the data has allowed identification of individual configurations of atoms surrounding each Fe atom and the comparison of these configurations with various ordered and disordered states. Partial ordering of the BiF3 type has been definitely observed at 25 at.% Ga, and the results suggest that is may extend to compositions as low as 20 at.% Ga.

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