Preparation, structures, and multiferroic properties of single-phase BiRFeO sub(3, R = La and Er ceramics)

A simple and effective method of solid state reaction followed by quenching process is used to prepare multiferroic Er[super]3+ and La[super]3+ doped BiFeO sub(3 ceramics. X-ray diffraction patterns indicated that these ceramics were of single-phase perovskite structure. Doping with la enhanced the...

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Bibliographic Details
Published in:Current applied physics 2011-05, Vol.11 (3), p.508-512
Main Authors: Rai, Radheshyam, Mishra, Sunil Kumar, Singh, N K, Sharma, Seema, Kholkin, Andrei L
Format: Article
Language:English
Subjects:
Ceramics
Diffraction patterns
Erbium
Ferroelectric materials
Ferromagnetism
Magnetic properties
Quenching
X-rays
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Summary:A simple and effective method of solid state reaction followed by quenching process is used to prepare multiferroic Er[super]3+ and La[super]3+ doped BiFeO sub(3 ceramics. X-ray diffraction patterns indicated that these ceramics were of single-phase perovskite structure. Doping with la enhanced the dielectric, ferroelectric and ferromagnetic properties of BiFeO) sub(3). A-site substitution with the la and Er ions has been found to suppress the spiral spin structure of BiFeO sub(3 giving rise to the appearance of room-temperature weak ferromagnetism. The enhanced multiferroic properties are attributed to the enhanced magnetoelectric interaction, which results from the la and Er substitution-induced destruction of the spin cycloid.)
ISSN:1567-1739
DOI:10.1016/j.cap.2010.09.003