Controlled reduction and oxidation of La0.85Sr0.15MnO3 single crystals

被引：6

作者：

De Leon-Guevara, AM ^{[1
]}

Berthet, P ^{[1
]}

Berthon, J ^{[1
]}

Millot, F ^{[1
]}

Revcolevschi, A ^{[1
]}

机构：

[1] Univ Paris Sud, Lab Chim Solides, URA446 CNRS, F-91405 Orsay, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 262卷

关键词：

lanthanum manganites; magnetic materials; thermogravimetric analysis; non-stoichiometry; electrical properties;

D O I：

10.1016/S0925-8388(97)00373-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

La0.85Sr0.15MnO3 single crystals were grown by the floating zone method. They can be reversibly reduced under controlled oxygen partial pressure. Their defect chemistry is investigated together with the evolution of their cell parameters and that of their electric conductivity which is very sensitive to their oxygen content. On the other hand, stoichiometric crystals can be oxidized with a slow kinetics making possible the preparation of diphasic materials. (C) 1997 Elsevier Science S.A.

引用

页码：163 / 168

页数：6

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