Synthesis, structure and magnetic properties of layered manganate Sr4Mn3-xCrxO10 (x=0, 0.2)

被引：0
|
作者：
Zaghrioui, M. [1 ]
Schoenstein, F. [1 ]
Autret-Lambert, C. [1 ]
Gervais, M. [1 ]
机构：
[1] Univ Tours, CNRS, CEA, UMR 6157,Lab Electrodynam Mat Avances,UFR Sci & T, F-37200 Tours, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 313卷 / 01期
关键词：
magnetic susceptibility; layered manganate; crystal structure; Cr-doped manganate;
D O I：
10.1016/j.jmmm.2006.12.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The manganates Sr4Mn3-xCrxO10 (x = 0 and 0.2) have been synthesized by solid state reaction. Powder X-ray diffraction analysis shows orthorhombic symmetry with space group Cmca for both compounds. The magnetic susceptibility measurements show an antiferromagnetic transition at 192 and 176 K for x = 0 and 0.2, respectively. The magnetic susceptibility data were estimated using a model based on spin exchange antiferromagnetic interactions in isolated (Mn4+) trimer; a paramagnetic contribution due to the chromium ions was added in the case of Cr-doped materials. (C) 2007 Elsevier B.V. All rights reserved.
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收藏
页码：52 / 56
页数：5
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