Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14154
Title: Multiferroic properties of single-phase Bi0.85La0.15FeO3 lead-free ceramics
Authors: Yuan, GL
Baba-Kishi, KZ
Liu, J
Or, SW 
Wang, YP
Liu, ZG
Issue Date: 2006
Publisher: Blackwell Publishing
Source: Journal of the American ceramic society, 2006, v. 89, no. 10, p. 3136-3139 How to cite?
Journal: Journal of the American Ceramic Society 
Abstract: Single-phase and lead-free Bi0.85La0.15FeO3 multiferroic ceramics were prepared by a rapid liquid sintering method to study their crystal structure and multiferroic behaviors. Rietveld refinement of X-ray diffraction data showed a pseudo-cubic structure plus a small triclinic distortion. The absence of Fe2+ ions suggested few oxygen vacancies. Large polarizations of 20.3 mu C/cm(2) together with a piezoelectric d(33) coefficient of similar to 27.7 pC/N were achieved. This ferroelectricity originates from the stereochemical activity of the A-site Bi3+ lone electron pair. The remnant magnetizations of 0.0744-0.227 emu/g of Bi0.85La0.15FeO3 permitted by the canting angle of canted antiferromagnetic order was released as a result of the collapse of the space-modulated spin structure of BiFeO3. The observed dielectric anomalies proved the magnetoelectric couplings between ferroelectric order and canted antiferromagnetic order.
URI: http://hdl.handle.net/10397/14154
ISSN: 0002-7820
DOI: 10.1111/j.1551-2916.2006.01186.x
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