Paramagnetic Defects and Thermoluminescence in Irradiated Nanostructured Monoclinic Zirconium Dioxide
Ananchenko D.V. Nikiforov S.V. Sobyanin K.V. Konev S.F. Dauletbekova A.K. Akhmetova-Abdik G. Akilbekov A.T. Popov A.I.
December 2022MDPI
Materials
2022#15Issue 23
The ESR spectra of nanostructured samples of monoclinic ZrO2 irradiated by electrons with energies of 130 keV, 10 MeV, and by a beam of Xe ions (220 MeV) have been studied. It has been established that irradiation of samples with electrons (10 MeV) and ions leads to the formation of radiation-induced F+ centers in them. Thermal destruction of these centers is observed in the temperature range of 375–550 K for electron-irradiated and 500–700 K for ion-irradiated samples. It is shown that the decrease in the concentration of F+ centers is associated with the emptying of traps responsible for thermoluminescence (TL) peaks in the specified temperature range. In the samples irradiated with an ion beam, previously unidentified paramagnetic centers with g = 1.963 and 1.986 were found, the formation of which is likely to involve Zr3+ ions and oxygen vacancies. Thermal destruction of these centers occurs in the temperature range from 500 to 873 K.
electron irradiation , F+ centers , ion irradiation , paramagnetic defects , zirconium dioxide
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Department of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russian Federation
Department of Technical Physics, L. N. Gumilyov, Eurasian National University, Astana, 010000, Kazakhstan
Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str, Riga, LV-1063, Latvia
Department of Physics and Technology
Department of Technical Physics
Institute of Solid State Physics
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