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Influence of the Fine and Hyperfine Structure Terms on the Electron Paramagnetic Resonance Spectra of Polycrystalline Solids
Author(s) -
Bissey J.Cl.,
Lissayou J.,
Beziade P.,
Berger R.,
Servant Y.
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.2221770226
Subject(s) - electron paramagnetic resonance , hyperfine structure , crystallite , spectral line , gaussian , line (geometry) , chemistry , resonance (particle physics) , materials science , electron , analytical chemistry (journal) , nuclear magnetic resonance , atomic physics , crystallography , physics , computational chemistry , geometry , mathematics , astronomy , quantum mechanics , chromatography
EPR spectra of polycrystalline compounds MnSO 4 · (NH 4 ) 2 SO 4 · 6H 2 O, Gd 2 (SO 4 ) 3 · 8H 2 O, and NH 4 Fe(SO 4 ) 2 · 12H 2 O are recorded at X‐band and room temperature. For the first two compounds, good agreement with simulated spectra of Gaussian lineshape is found, and the numerical values of the fine ( D ) and hyperfine ( A ) structure constants are obtained by fitting with experimental spectra. For the last compound, the fine structure characteristic of the cubic term (a) is responsible for the “hyper‐Gaussian” shape of the EPR line.