Synthesis of powders and thin films of bismuth ferrite from solution: a magneto-electric study

被引：5
作者：
Diaz-Castanon, S. [1 ]
Garcia-Zaldivar, O. [1 ,2 ]
Faloh-Gandarilla, J. [1 ]
Watts, B. E. [3 ]
Calderon-Pinar, F. [1 ,2 ]
Hernandez-Landaverde, M. A. [2 ]
Espinoza-Beltran, F. J. [2 ]
机构：
[1] Univ La Habana, Fac Fis, Inst Ciencia & Tecnol Mat, Havana 10400, Cuba
[2] CINVESTAV, Unidad Queretaro, Queretaro 76230, QRO, Mexico
[3] Ist IMEM CNR, I-43010 Parma, Italy
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2014年 / 117卷 / 03期
关键词：
BIFEO3; FEATURES;
D O I：
10.1007/s00339-014-8523-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Metalorganic decomposition and coprecipitation from aqueous solution have been used to synthesize thin film and bulk bismuth ferrite (BiFeO3) with perovskite structure. X-ray diffraction, thermomagnetic analysis, and scanning electron microscopy were used to analyze the material and identify spurious phases. The magnetic characterization at room temperature revealed remarkable differences between bulk and film samples. The results show that in BiFeO3 bulk ceramics, spontaneous magnetization is not observed at room temperature. Nevertheless, in thin films, a well-defined ferromagnetic behavior is observed at room temperature. Dielectric measurements taken on ceramic samples present an anomaly around 643 K that can be associated with the Neel temperature.
引用
收藏
页码：1283 / 1288
页数：6
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