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Luminescence induced by tunnelling recombination between neutral silver atoms and V k centres in alkali halides
Author(s) -
Tashiro T.,
Takeuchi S.,
Saidoh M.,
Itoh N.
Publication year - 1979
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.2220920234
Subject(s) - quantum tunnelling , recombination , luminescence , atomic physics , atmospheric temperature range , chemistry , halide , electron , alkali metal , irradiation , range (aeronautics) , anisotropy , atom (system on chip) , condensed matter physics , materials science , physics , inorganic chemistry , thermodynamics , nuclear physics , optics , biochemistry , organic chemistry , gene , computer science , composite material , embedded system
The decay curves of the tunnelling recombination luminescence between the neutral silver atom and the V k centre in NaCl and KCl induced by irradiation with an electron pulse are obtained in the temperature range between 77 and 580 K. It is shown that the decay at 77 K follows a t −1 dependence for NaCl but a slower time dependence for KCl. The temperature dependence of the decay curve for NaCl is found to be such that the increase of temperature makes the decay slower at a delay time depending on temperature and enhances the decay rate at a longer delay time. On the other hand, the decay rate for KCl becomes faster with increasing temperature. The time dependence of the decay at 77 K and the temperature dependence of the decay are explained in terms of the anisotropic character of the tunnelling recombination.