The "114" Cobaltites and Ferrites: New Routes to Ferrimagnetism and Magnetic Frustration

被引：26

作者：

Raveau, Bernard ^{[1
]}

Caignaert, Vincent ^{[1
]}

Pralong, Valerie ^{[1
]}

Maignan, Antoine ^{[1
]}

机构：

[1] Univ Caen, CNRS, ENSICAEN, UMR 6508,Lab CRISMAT, F-14050 Caen, France

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2009年 / 635卷 / 12期

关键词：

Cobaltites; Magnetic properties; Ferrimagnetism; Ferrites; Rare Earths; ROOM-TEMPERATURE; T-C; TRANSPORT; SERIES; X=0;

D O I：

10.1002/zaac.200900201

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An overview of the magnetic properties of the "114" cotaltites and ferrites in connection with their crystal structure, built up of triangular and kagome layers Of CoO4 tetrahedra is presented. These oxides can be classified into three different structural types according to their room temperature structure: the trigonal P31e phases LnBaCo(4)O(7) and CaBaFe4O7, the orthorhombic Pbn2(1) CaBaCo4O7 phase, and the cubic LnBaFe(4)O(7) oxides. The magnetic properties show complex transitions for LnBaCo(4)O(7) oxides, whereas spin glass like behavior is observed for LnBaFC(4)O(7) and ferrimagnetic like properties are observed for CaBaFe4O7 and CaBaCo4O7. The topotactic oxidation of those oxides is also discussed.

引用

页码：1869 / 1876

页数：8

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