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
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