Luminescence and Dielectric Properties of Electron and Neutron Irradiated Corundum Single Crystals

Autor:	Harutyunyan, V. V., Aleksanyan, Eduard, Grigoryan, N. E., Sahakyan, A. A., Yeritsyan, G. N., Nikoghosyan, S. K., Hovannisyan, A. S., Badalyan, A. H.
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Condensed Matter::Materials Science Condensed Matter::Other Condensed Matter::Superconductivity Physics::Atomic and Molecular Clusters Physics::Optics ddc:530
Zdroj:	Armenian journal of physics 10(2), 69-75 (2017). doi:10.3204/PUBDB-2017-11605
DOI:	10.3204/pubdb-2017-11605
Popis:	Armenian journal of physics 10(2), 69 - 75 (2017). The luminescence and electronic properties of electron and neutron irradiated α-Al2O3 single crystals are compared with those of non-irradiated sapphire crystals using photoluminescence spectroscopy and dielectric constant measurements. It is shown that high-energy particles create stable structural defects in the corundum single crystal lattice due to knocking-out of atoms from their standard positions in anion and cation sub-lattices. These defects are mainly associated with F and F+ centers as well as with other vacancies, interstitials and complex defects such as [Al + F] type aggregate centers. Published by Yerevan
Databáze:	OpenAIRE
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