Effect of annealing on EPR of irradiated anion-defective alumina single crystal

Autor:	S.F. Konev, V. S. Kortov, D.V. Ananchenko
Rok vydání:	2017
Předmět:	Crystallography Materials science Absorption spectroscopy law Annealing (metallurgy) Vacancy defect Irradiation Electron paramagnetic resonance Single crystal Spectral line law.invention Ion
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.5002924
Popis:	EPR-spectrum of the irradiated alumina crystal features an isotropic radiation-induced broad signal with resonance absorption line I at 3500 G and line II at 3240 G. The values of g⊥-factors of absorption lines I and II for the irradiated sample are 2.008 and 2.11 respectively. Step annealing EPR shows decomposition of absorption line I at 820 K. Absorption line II can be associated with complex defect created by alumina vacancy with trapped hole and F+ - center which disappears completely after annealing at 1423 K.
Databáze:	OpenAIRE
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