Publication Details:
Journal or Publication Title:
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
Date of publication:
Volume:
Number:
ISSN:
Official URL:
Title:
Luminescence and Dielectric Properties of Electron and Neutron Irradiated Corundum Single Crystals
Creator:
V. V. Harutyunyan ; Sahakyan, A. A. ; E. M. Aleksanyan ; N. E. Grigoryan ; G. N. Yeritsyan ; S. K. Nikoghosyan ; A. S. Hovannisyan ; A. H. Badalyan
Corporate Creators:
A. I. Alikhanyan National Scientific Laboratory, Yerevan, Armenia
Subject:
Coverage:
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.