Changes in the Phases and Electrical Conduction Properties of ( La1 − x Sr x ) 1 − y MnO3 − δ
- 1 May 1991
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 138 (5) , 1519-1523
- https://doi.org/10.1149/1.2085819
Abstract
Perovskite oxides , [ and , ] containing A site defects were studied by thermal analysis, measuring of the temperature dependence of electrical conductivity (373–1273 K) and x‐ray diffraction. The results showed that underwent a phase transition accompanied by oxygen desorption at about 1000 K in air. The electrical conduction mechanism also changed from small‐polaron conduction. The amount of oxygen desorption accompanying the phase transition decreased stoichiometrically with increasing Sr content.Keywords
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