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Optical absorption study of colour centres in SrLaAIO 4 single crystals
Author(s) -
Ubizskii S. B.,
Savytskii D. I.,
Matkovskii A. O.,
Gloubokov A.,
Pajaczkowska A.
Publication year - 1996
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.2221970131
Subject(s) - irradiation , annealing (glass) , absorption spectroscopy , absorption (acoustics) , spectral line , materials science , oxygen , photochemistry , single crystal , crystallography , analytical chemistry (journal) , chemistry , optics , physics , organic chemistry , metallurgy , astronomy , nuclear physics , composite material
The peculiarities of absorption spectra of SrLaAIO 4 single crystals are investigated as well as the influence of thermal annealing in air and y‐irradiation ( 60 Co source) on them. A more complex structure of absorption bands was revealed, in contrast to previous investigations. The investigation of changes of absorption spectra induced by annealing and irradiation suggests that both reversible and irreversible processes take place in either case and the oxygen defects are most probably responsible for the observed effects.