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On the oscillator strength of F centers in alkali halides
Author(s) -
Bosi L.,
FantolaLazzarini A. L.,
Lazzarini E.,
Ramaglia V. Marigliano,
Tagliacozzo A.
Publication year - 1975
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.2220690224
Subject(s) - halide , alkali metal , oscillator strength , chemistry , physics , mineralogy , analytical chemistry (journal) , inorganic chemistry , quantum mechanics , chromatography , spectral line
A radiochemical method, previously applied to NaCl, KCl, and KBr crystals has been used to determine the oscillator strength ƒ of F‐centers in RbCl. By extending theoretical calculations carried out by Smith and Spinolo, and by Iadonisi and Preziosi, estimates of ƒ for several alkali halides, including those previously mentioned, have been computed. The experimental results agree very closely with those obtained by Rauch and Heer and are in good accord with the theoretical estimates (the theoretical results are reported in brackets). ƒ NaCl = 0.64 ± 0.02 (0.57); ƒ KCl = 0.68 ± 0.02 (0.61); ƒ KBr = 0.72 ± 0.02(0.57); ƒ RbCl = 0.51 ± 0.05 (0.57). The experimental and theoretical results seemed to bear each other out and led to the conclusion that the ƒ values given in the literature, except those by Rauch and Heer, are overestimated.