RADIATION DEFECTS IN SRLAGA3O7 CRYSTALS DOPED WITH RARE-EARTH ELEMENTS

Authors
KACZMAREK SM JABLONSKI R PRACKA I BOULON G LUKASIEWICZ T MOROZ Z WARCHOL S
Citation
Sm. Kaczmarek et al., RADIATION DEFECTS IN SRLAGA3O7 CRYSTALS DOPED WITH RARE-EARTH ELEMENTS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 142(4), 1998, pp. 515-522
Citations number
7
Categorie Soggetti
Instument & Instrumentation","Nuclear Sciences & Tecnology","Physics, Atomic, Molecular & Chemical","Physics, Nuclear
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
142
Issue
4
Year of publication
1998
Pages
515 - 522
Database
ISI
SICI code
0168-583X(1998)142:4<515:RDISCD>2.0.ZU;2-I
Abstract
Influence of gamma and proton exposures on the optical absorption and photoluminescence of SrLaGa3O7 (SLGO) single crystals doped with Nd, D y and Pr was studied. We observed that color centers, which appeared a fter the irradiation, shift the short-wave absorption edge towards the longer wavelengths by a few hundreds nm, They are probably attributed to the Ga2+ centers which are formed according to the reaction Ga3+ e(-) --> Ga2+ with a spin of S = 1/2, g parallel to = 1.9838(5) and g (perpendicular to) =2.0453(5). (C) 1998 Elsevier Science B.V. All righ ts reserved.