Structural and magnetic properties of Bi0.7Gd0.3FeO3 ceramics

被引：0

作者：

Kumar, K. Saravana ^{[1
]}

Venkateswaran, C. ^{[1
]}

机构：

[1] Univ Madras, Ctr Mat Sci, Dept Nucl Phys, Madras 600025, Tamil Nadu, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2011年 / 64卷 / 1-2期

关键词：

multiferroic; BiFeO3; high-energy ball milling; magnetization study; thermal study; magnetoelectric;

D O I：

10.1007/s12666-011-0048-y

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of Gadolinium (Gd) substitution on the structural and magnetic properties of BiFeO3 is studied. Both BiFeO3 and (Bi0.7Gd0.3)FeO3 were synthesized in two steps: by high-energy ball milling of oxides for a total of 5 hours at 400 RPM and then sintering as-milled powders of BiFeO3 at 700 degrees C/24 hours and (Bi0.7Gd0.3)FeO3 at 800 degrees C /12 hours, to get the required phase. A structural transition is observed from rhombohedral (R3c) to orthorhombic (Pnma) as evident from the X-Ray Diffraction (XRD) study. The orthorhombic structure of Gd-substituted sample is iso-structural with GdFeO3. (Bi0.7Gd0.3)FeO3 shows a soft ferromagnetic behaviour when compared to antiferromagnetic BiFeO3 at room temperature.

引用

页码：241 / 243

页数：3

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