Investigation of Colour Centres in SrLaAlO4 and SrLaGaO4 Single Crystals |
| S.B. Ubizskiia, D.I. Savytskiia, V.Ya. Olijnyka, A.O. Matkovskiia,b, A. Gloubokovc and A. Pajączkowskac,d aR&D Institute for Materials, SRC "Carat", Stryiska 202, 290031 L'viv, Ukraine bInstitute of Physics, High Pedagogic School, Rejtana 16A, 35-310 Rzeszów, Poland cInstitute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland dInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland |
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| Absorption spectra of SrLaAlO4 and SrLaGaO4 single crystals are investigated as well as their changes after irradiation by γ-quanta (60Co source). Both crystals reveal a similar behaviour that is caused, as it seems, by the same nature of colour centres in them. The conclusion that oxygen defects as well as Fe impurities play a significant role in the colour centres formation in these crystals. |
| DOI: 10.12693/APhysPolA.92.163 PACS numbers: 61.82.Ms |