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Paramagnetic Resonance of F‐centers in Mixed KCl‐RbCl Crystals
Author(s) -
Arends J.,
Dekker A. J.
Publication year - 1964
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.19640050204
Subject(s) - electron paramagnetic resonance , hyperfine structure , ion , spectral line , crystal (programming language) , vacancy defect , paramagnetism , chemistry , absorption (acoustics) , absorption spectroscopy , resonance (particle physics) , isotropy , nuclear magnetic resonance , crystallography , atomic physics , materials science , condensed matter physics , physics , optics , organic chemistry , astronomy , computer science , composite material , programming language
Results are presented of paramagnetic resonance and optical measurements on F‐centers in mixed crystals of KCl and RbCl. The optical absorption results are in agreement with published data. The EPR spectra are interpreted in terms of the isotropic magnetic hyperfine interaction between the F‐electron and the nuclei of the six cations immediately surrounding the vacancy. This interpretation allows an identification of the individual lines observed in the EPR spectra, in terms of specific combinations of Rb + and K + ions around the F‐electron. Furthermore, the EPR absorption spectrum, calculated for a given composition of the mixed crystal, agrees well with the observed spectrum.