Transformation of Nd3+ Centers in Y2SiO5 Crystals during Heat Treatment in a Reducing Atmosphere and Gamma Irradiation
М. Х. АшуровInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, 100214, Ulugbek, Tashkent, UzbekistanИ. НуритдиновInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, 100214, Ulugbek, Tashkent, UzbekistanЗ. У. ЭсановInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, 100214, Ulugbek, Tashkent, UzbekistanKh. M. MajidovInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, 100214, Ulugbek, Tashkent, Uzbekistan
ABI
Abstract
We have studied absorption spectra of Y2SiO5:Nd crystals after gamma irradiation and heat treatment under reducing conditions. The results demonstrate that, during gamma irradiation or heat treatment of the crystals, the generation of oxygen vacancies in the vicinity of Nd3+ ions coordinated to seven oxygens (Nd1 centers) changes their oxygen coordination to six (Nd2 centers), that is, causes a partial transition of Nd1 to Nd2 centers.
Topics
Identifiers
Citations and references
Metrics — AkademScholar · Coming soon