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Yu. D. Perfiliev, V. S. Rusakov, L. A. Kulikov
Effect
of the Captured Electrons on the Emissive Moessbauer Spectra
Abstract
The
resonance lines observed in source experiments are significantly broader than
in the correspononding absorber experiments. To explain this phenomenon the model
of trapped electron was proposed. Auger electrons emitted after electron
capture of Co57 and also secondary electrons may be trapped in the vicinity of
the nucleogenic iron. Asymmetrical distribution of quadrupole splittings in
emission Mössbauer spectra is result of electron capture by lattice traps
situated at different distances from the iron ion. The estimates of quadrupole
splitting due to trapped electrons support the above-mentioned model.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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