Abstract
Gammaresonance (Mossbauer) spectroscopy is one of the most informative methods of investigating the chemical composition and structural, magnetic, and thermodynamic properties of materials. The Mossbauer absorption spectra in most cases consist of a large number of lines corresponding to nonequiva� lent positions of the Mossbauer atom in a sample. The lines are formed due to the hyperfine interaction of the nucleus spin with internal electric and magnetic fields, the value of which is determined by the properties of the material under investigation. The problem of determining the material properties is reduced in the first approximation to finding the spectral density of states P(ω), which in the best way describes the exper� imental absorption spectrum I(ω), i.e., solving the integral equation of a reasonably general form
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