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Fe 2+ Quadrupole Splitting in Dolomite under Orbit‐Lattice Interaction. A mossbauer study
Author(s) -
Sinha T. P.,
Ganguli S.,
Bhattacharya M.
Publication year - 1993
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.2221800214
Subject(s) - quadrupole splitting , mössbauer spectroscopy , ion , lattice (music) , quadrupole , observable , mössbauer effect , lattice vibration , ferrous , condensed matter physics , chemistry , atomic physics , physics , crystallography , quantum mechanics , phonon , organic chemistry , acoustics
The temperature dependence of the Mössbauer quadrupole splitting of Fe 2+ ions in dolomite is theoretically analysed from 12 to 295 K by invoking orbit‐lattice interaction (dynamic crystal field potential through vibronic coupling). This results in a good agreement between theoretical and experimental data. It is shown that the orbit‐lattice interaction is important for ferrous ions and its effect should be duly included in the interpretation of Mössbauer observables as a function of temperature.