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Displacement of Impurities through Interaction with Radiation‐Induced Interstitials in Alkali Halides
Author(s) -
Matsunami N.,
Yokoyama Y.,
Itoh N.
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.2220750210
Subject(s) - impurity , halide , irradiation , materials science , alkali metal , doping , absorption (acoustics) , displacement (psychology) , radiation , atomic physics , chemistry , inorganic chemistry , optics , optoelectronics , physics , nuclear physics , organic chemistry , psychology , composite material , psychotherapist
Optical absorption and channeling studies of irradiated Pb ++ ‐doped KCl are made. It is found by channeling experiment that Pb ++ is displaced nearly to the face center by irradiation at room temperature. Optical absorption studies indicate that the position of the peak of the V‐type centers produced in Pb ++ ‐doped KCl is different from the V centers produced in pure KCl and the A band for Pb ++ becomes broad by irradiation. It is concluded that the interstitials are associated with the impurities and cause the displacement of the latter. A possible model for the complex of the interstitials and the impurity is suggested.