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Point‐Charge Model Calculations in a‐NaFeO 2
Author(s) -
Taft C. A.,
Raj D.,
Da J.
Publication year - 1974
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.2220640114
Subject(s) - quadrupole , distortion (music) , quadrupole splitting , sign (mathematics) , ion , mössbauer spectroscopy , electric field gradient , lattice (music) , chemistry , point particle , condensed matter physics , physics , molecular physics , atomic physics , crystallography , mathematics , quantum mechanics , mathematical analysis , amplifier , optoelectronics , cmos , acoustics
Abstract The origin of the quadrupole splitting observed in the Mossbauer spectra of α‐NaFeO 2 has been investigated using a point charge model. The magnit, ude of the electric field gradient (EFG) is very sensitive to the value of u, the distortion parameter of the anion sub‐lattice. These calculations combined with the experimental results are used to deduce information about the relative amount of distortion in this compound. The sign of the EFG is positive.