| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1448699 | Acta Materialia | 2008 | 9 Pages |
Abstract
The paper presents experimental results on an in situ optical absorption study of reduction/oxidation processes in YAlO3. The increase in the absorption of the bands at 22,000 and 40,000Â cm-1 during annealing in an oxidizing atmosphere as well as their bleaching during reduction were studied in YAlO3 and YAlO3:Nd crystals in the temperature range 600-1000Â K. The oxidation and reduction kinetics were analyzed by means of exponential decay modeling as well as in the framework of different models, taking into account diffusion and quasi-chemical reactions of the phototropic centers.
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Authors
D. Sugak, Ya. Zhydachevskii, O. Buryy, S. Ubizskii, A. Börger, M. Schrader, K.-D. Becker,