Найдено научных статей и публикаций: 2, для научной тематики: Al2O3
1.
E. A. Kotomin, A. I. Popov
- Nuclear Instruments and Methods in Physics Research Section B, Volume 141, 1998, Pages 1-15 , 1998
We present a survey of recent theoretical studies of radiation-induced point defects in simple oxides with emphasis on highly ionic MgO, partly-covalent corundum (Al2O3) and ferroelectric KNbO3. The atomic and electronic structure of the electronic (F+ and F centers) and hole centers, as well as int...
We present a survey of recent theoretical studies of radiation-induced point defects in simple oxides with emphasis on highly ionic MgO, partly-covalent corundum (Al2O3) and ferroelectric KNbO3. The atomic and electronic structure of the electronic (F+ and F centers) and hole centers, as well as interstitial atoms therein are discussed in light of the available experimental data. Results for defect diffusion and photo-stimulated F+ → F center conversion are also analyzed.
Nuclear Instruments and Methods in Physics Research Section B, Volume 141, 1998, Pages 1-15
2.
E. A. Kotomin, A. I. Popov, A. Stashans
- physica status solidi (b) , 1998
Results of quantum chemical computer simulations of close Frenkel defects in corundum crystals are presented and discussed. The conclusion is drawn that the energy barrier for a back recombination up to fourth nearest neighbours is less than 0.3 eV, i.e. such pairs should be unstable at temperatures...
Results of quantum chemical computer simulations of close Frenkel defects in corundum crystals are presented and discussed. The conclusion is drawn that the energy barrier for a back recombination up to fourth nearest neighbours is less than 0.3 eV, i.e. such pairs should be unstable at temperatures above 40 K.
phys. stat. sol. (b) 207, 69 (1998)
