Room temperature structure and multiferroic properties in Bi0.7La0.3FeO3 ceramics

authors	Carvalho, TT; Fernandes, JRA; de la Cruz, JP; Vidal, JV; Sobolev, NA; Figueiras, F; Das, S; Amaral, VS; Almeida, A; Moreira, JA; Tavares, PB
nationality	International
journal	JOURNAL OF ALLOYS AND COMPOUNDS
author keywords	Ceramics; Multiferroic materials; Magnetoelectric; BiFeO3
keywords	BIFEO3 CERAMICS; CRYSTAL-STRUCTURE; MAGNETIC-PROPERTIES; PHASE-TRANSITION; BISMUTH FERRITE; RARE-EARTH; LA; FERROMAGNETISM; NANOPARTICLES; POLARIZATION
abstract	Single phase Bi0.7La0.3FeO3 ceramic samples were successfully synthesized by sol-gel combustion and co-precipitation methods, performing a final sintering at 820-870 degrees C from 10 up to 180 min. Rietveld refinements of the XRD data detected small satellite peaks that were successfully indexed by an incommensurated modulated structure model. Lanthanum doping improves magnetic response, reduces the leakage current and dielectric losses. The piezoelectric coefficient was reported for the first time in the Bi0.7La0.3FeO3 composition. (C) 2012 Elsevier B. V. All rights reserved.
publisher	ELSEVIER SCIENCE SA
issn	0925-8388
year published	2013
volume	554
beginning page	97
ending page	103
digital object identifier (doi)	10.1016/j.jallcom.2012.11.018
web of science category	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
subject category	Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
unique article identifier	WOS:000314642200015