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Correlation of Zero‐Field Splittings and Site Distortions. II. Application of the Superposition Model to Mn 2+ and Fe 3+
Author(s) -
Lehmann G.
Publication year - 1980
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.2220990222
Subject(s) - superposition principle , lattice (music) , sign (mathematics) , ion , spectral line , electron paramagnetic resonance , chemistry , zero field splitting , relaxation (psychology) , physics , zero (linguistics) , atomic physics , crystallography , nuclear magnetic resonance , electron , quantum mechanics , mathematics , psychology , mathematical analysis , social psychology , linguistics , philosophy , acoustics , spin polarization
Sign and size of b 0 2for Mn 2+ and Fe 3+ with O, F, or Cl as ligands are correlated with axial site distortions. Consistent values of b 2 –are obtained by application of the superposition model. These values are more than twice as large for Fe 3+ than for Mn 2+ , but their sign may vary for different compounds and/or metal ion‐ligand pairs. Local charge compensation and effects of lattice relaxation are apparent in several cases. Unambiguous assignments of EPR spectra to specific lattice sites via these correlations are also demonstrated.