Structure and spin glass behaviour in non-metallic Yb2CoMnO6 perovskite manganite

被引：17
|
作者：
Wang, XL
James, M
Horvat, J
Gao, F
Li, AH
Liu, HK
Dou, S
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia
[2] ANSTO, Neutron Grp, Menai, NSW, Australia
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 246卷 / 1-2期
基金：
澳大利亚研究理事会;
关键词：
spin glass; ferrornagnetism; antiferromagnetism; perovskite; manganite;
D O I：
10.1016/S0304-8853(02)00033-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Yb2CoMnO6 perovskite manganite was synthesised. Rietveld refinement of powder X-ray diffraction data indicated that this compound crystallised with a GdFeO3-type orthorhombic structure containing distorted (Co/Mn)O-6 octahedra (Pnma; a = 5.5593(2) Angstrom; b = 7.4154(2) Angstrom; c = 5.1825(1) Angstrom; V = 213.65(1) Angstrom(3); Z = 2). The DC magnetisation and frequency dependence of real part of AC susceptibility was measured over a wide temperature range. A spin glass ground state at 40 K was observed to arise from a ferromagnetic state and caused by competition between the ferromagnetic and antiferromagnetic interaction. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：86 / 92
页数：7
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