Mossbauer spectroscopic studies of perovskite-type oxides Ln1-xAxBO3 synthesized by the sol-gel method

被引：1

作者：

Yamauchi, T ^{[1
]}

Katada, M ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Sci, Tokyo 1920397, Japan

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2003年 / 255卷 / 02期

关键词：

D O I：

10.1023/A:1022544501844

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Synthesis of perovskite-type oxides Ln(1-x)A(x)BO(3) (Ln: lanthanoid; A: alkaline earth; B: transition metal) by heating at low temperature with large ratio of alkaline earth element, especially barium, easily involves impurity of alkaline earth carbonate. We succeeded to prepare the precursor without the formation of barium carbonate even at a large content of barium. The chemical state and structure of Ln(1-x)A(x)BO(3-delta) (Ln: La, Eu; A: Ca, Sr, Ba: B: Fe, Mn) perovskite-type oxides prepared by using those precursors have been studied by Mossbauer spectroscopy and X-ray powder diffraction. The X-ray powder patterns showed many types of crystal system depending on x.

引用

页码：299 / 303

页数：5

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