Dielectric anomaly and magnetic properties of multiferroic GaFe0.75Mn0.25O3

被引：16

作者：

Mohamed, Mohamed Bakr ^{[1
]}

Hinterstein, Manuel ^{[1
]}

Fuess, H. ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

来源：

MATERIALS LETTERS | 2012年 / 85卷

关键词：

Multiferroics; Magnetic; Dielectric; Sol-gel; Mn; SOLID-STATE REACTION; FERROELECTRICITY; GAFEO3; GEL;

D O I：

10.1016/j.matlet.2012.07.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

GaFe0.75Mn0.25O3 was synthesized by a sol-gel process. The X-ray diffraction pattern analysis using the Rietveld refinement method indicated that the sample has an orthorhombic structure. Magnetization measurement shows that GaFe0.75Mn0.25O3 has ferromagnetic behavior with T-C=212 K. Dielectric investigations revealed a temperature independent anomaly at around 255 K with frequency dispersion of dielectric constant. The low temperature high-resolution synchrotron data analysis shows that lattice parameters also reveal an anomaly at 225 K without a change in the crystal structure. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：102 / 105

页数：4

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