Etude Structurale et Magnétique des Oxydes Perovskites Ba 2NbVO 6 et Sr 2TaVO 6

Two new perovskites Ba 2NbVO 6 and Sr 2TaVO 6 are investigated. These compounds are prepared by solid state reaction between 1100 and 1200°C in a special high temperature furnace. The crystallographic study of polycrystalline powder samples gives the spatial group Pin3m for the 2 perovskites. Magnet...

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Bibliographic Details
Published inJournal of solid state chemistry Vol. 11; no. 4; pp. 265 - 271
Main Authors Bernier, Jean-Claude, Chauvel, Christian, Kahn, Olivier
Format Journal Article
LanguageFrench
Published Elsevier Inc 1974
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Summary:Two new perovskites Ba 2NbVO 6 and Sr 2TaVO 6 are investigated. These compounds are prepared by solid state reaction between 1100 and 1200°C in a special high temperature furnace. The crystallographic study of polycrystalline powder samples gives the spatial group Pin3m for the 2 perovskites. Magnetic susceptibilities were determined in the temperature range 4.2–1200°K. Above 400°K a theoretical interpretation is proposed by magnetic exchange interaction between pairs of vanadium. The parameters corresponding to this interpretation are calculated.
ISSN:0022-4596
1095-726X
DOI:10.1016/S0022-4596(74)80031-9