Title of article
Optical in situ study of reduction/oxidation processes in YAlO3 Original Research Article
Author/Authors
D. Sugak، نويسنده , , Ya. Zhydachevskii، نويسنده , , O. Buryy، نويسنده , , S. Ubizskii، نويسنده , , A. B?rger، نويسنده , , M. Schrader، نويسنده , , K.-D. Becker، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2008
Pages
9
From page
6310
To page
6318
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 40,000 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 600–1000 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.
Keywords
Optical spectroscopy , Annealing , Point defects , Reduction and oxidation kinetics , Perovskites
Journal title
ACTA Materialia
Serial Year
2008
Journal title
ACTA Materialia
Record number
1143985
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