Interpretation of Mossbauer Spectra of Multicomponent Single-Phase Disordered Solid Solutions Within an Extended Mathematical Model

A method for processing Mossbauer spectra of multicomponent single-phase disordered solid solutions using an extended mathematical model is proposed. The method can detect local distortions of a body-centered cubic lattice and the local symmetry of a resonant atom that arise from differences in the properties of the atoms of the mixed components. The significance of the extended mathematical model for obtaining reliable information and, accordingly, reliable interpretation of experimental spectroscopic results is demonstrated using processing of Mossbauer spectra of single-phase disordered solid solutions Fe₇₅Si₁₅Al₁₀, Fe₇₅Si₁₅Ge₁₀, and Fe₇₅Sn₁₅Ge₁₀ as examples.