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.
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页码：241 / 243
页数：3
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