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Mössbauer Effect in (Mn 1− x − y Fe x Zn y ) 4 [BeSiO 4 ] 3 S Solid Solutions
Author(s) -
Romanov V. P.,
Valter A. A.,
Zverev N. D.,
Eremenko G. K.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700410118
Subject(s) - ion , spectral line , quadrupole splitting , quadrupole , chemistry , mössbauer spectroscopy , solid solution , mössbauer effect , analytical chemistry (journal) , crystallography , atomic physics , physics , organic chemistry , astronomy , chromatography
Fe II ion spectra of a nuclear gamma resonance on Fe 57 nuclei have been investigated in (Mn 1− x − y Fe x Zn y ) 4 [BeSiO 4 ] 3 S solid solutions. The characteristic feature of the spectra is that at 85 °K the electric quadrupole splitting is observed, but at 294 °K the spectra are single, considerably broadened lines. This broadening is assumed to be caused by a unresolved electrical fine structure. According to this assumption, Δ E Q values calculated from the spectra appear to be unusually low and characteristic rather of Fe 3+ ions than of Fe 2+ . The isomer shift values obtained are not characteristic for Fe 2+ ions as well. The experimental data on Δ E Q and the isomer shift are explained by the ligand unequivalences and the mechanism of d 2 p‐hybridization of Fe II ion electronic shells.