Armenian Journal of Physics

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

Harutyunyan, V.V. and Aleksanyan, E.M. and Grigoryan, N.E. and Sahakyan, A.A. and Yeritsyan, G.N. and Nikoghosyan, S.K. and Hovannisyan, A.S. and Badalyan, A.H. (2017) Luminescence and Dielectric Properties of Electron and Neutron Irradiated Corundum Single Crystals. Armenian Journal of Physics, 10 (2). pp. 69-75. ISSN 1829-1171

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Abstract

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.

Item Type:Article
Subjects:Physics > 20.Nuclear physics
ID Code:897
Deposited By:Prof. Vladimir Aroutiounian
Deposited On:05 Oct 2017 12:15
Last Modified:05 Oct 2017 12:15

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