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Electron Spin Resonance Study of Cr 3+ and Fe 3+ in Alums
Author(s) -
Fǎrcas S. I.,
Darabant A.,
Nicula A.
Publication year - 1976
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.2220740136
Subject(s) - alum , ion , atomic physics , electron paramagnetic resonance , resonance (particle physics) , electron , chemistry , spin (aerodynamics) , spectral line , physics , nuclear magnetic resonance , nuclear physics , organic chemistry , astronomy , thermodynamics
The angular dependence of the electron spin resonance spectrum of Cr 3+ and Fe 3+ ions in diluted ammonium alum has been measured, and the spin Hamiltonian parameters have been derived. In addition to the allowed fine structure lines some small‐intensity lowfield lines have been observed. These lines were identified as forbidden fine structure transitions due to Cr 3+ and Fe 3+ in alum. A good agreement between the theoretical angular dependence with that experimentally found confirmed the lines and the local symmetry of the ions to be correctly determined.