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EPR of Cr 3+ Ions in Alexandrite
Author(s) -
Barry W. R.,
Troup G. J.
Publication year - 1969
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.19690350236
Subject(s) - electron paramagnetic resonance , ion , hamiltonian (control theory) , symmetry (geometry) , zero field splitting , crystallography , physics , field (mathematics) , chemistry , atomic physics , condensed matter physics , nuclear magnetic resonance , electron , quantum mechanics , geometry , spin polarization , mathematics , mathematical optimization , pure mathematics
Results on the EPR of Cr 3+ ions occupying mirror symmetry sites in alexandrite are described. The Spin Hamiltonian parameters are: D = ( −7.31 ± 0.02) GHz, E = = (‐1.71 ± 0.02) GHz with g x = 1.978 ± 0.003, g y = 1.980 ± 0.004, g z = 1.969 ± ± 0.004 with a corresponding zero‐field splitting between the Kramer's doublets of (15.7 ± 0.05) GHz. The relationships between the crystallographic axes and the axes of the magnetic complexes show slight departures from the crystallographic symmetry of pure chrysoberyl.