Sb. Ubizskii et al., OPTICAL-ABSORPTION STUDY OF COLOR-CENTERS IN SRLAALO4 SINGLE-CRYSTALS, Physica status solidi. b, Basic research, 197(1), 1996, pp. 241-250
The peculiarities of absorption spectra of SrLaAlO4 single crystals ar
e investigated as well as the influence of thermal annealing in air an
d gamma-irradiation (Co-60 source) on them. A more complex structure o
f absorption bands was revealed, in contrast to previous investigation
s. The investigation of changes of absorption spectra induced by annea
ling and irradiation suggests that both reversible and irreversible pr
ocesses take place in either case and the oxygen defects are most prob
ably responsible for the observed effects.