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Optical Absorption of an Interstitial Alkali‐Earth Cation in an Alkali‐Halide Crystal
Author(s) -
Wang S.
Publication year - 1967
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.19670230140
Subject(s) - alkali metal , halide , crystal (programming language) , ion , valence (chemistry) , chemistry , polaron , absorption (acoustics) , alkaline earth metal , electron , interstitial defect , inorganic chemistry , absorption spectroscopy , atomic physics , materials science , physics , optics , optoelectronics , organic chemistry , quantum mechanics , computer science , programming language , doping
Using both the concepts of the polaron model of the electron‐excess color center and the valence‐electron model of atoms introduced in this paper, we have formulated a method to compute the optical absorption energy of an interstitial alkali‐earth cation contained in an alkali‐halide crystal. The numerical results are given for the interstitial ion Ca + in KCl and KBr. The possibility of Kojima's model for the Z 2 and Z 3 bands is also discussed in this work.