Issue 36, 2013
From the journal:

Journal of Materials Chemistry C

Active ferroelectricity in nanostructured multiferroic BiFeO3 bulk ceramics

Qinghui Jiang,*a   Huanpo Ning,a   Qi Zhang,b   Markys Cain,c   Michael J. Reecea  and  Haixue Yan*a  

* Corresponding authors

a School of Engineering and Materials Science, Queen Mary University of London, London, UK
E-mail: q.jiang@qmul.ac.uk, h.x.yan@qmul.ac.uk

b School of Applied Sciences, Cranfield University, Bedfordshire MK43 0AL, UK

c National Physical Laboratory, Hampton Road, Teddington, UK

Abstract

Dense BiFeO3 nanoceramics (∼40 nm) were prepared by spark plasma sintering nanopowders synthesized via a sol–gel method and high energy ball milling. The Neel temperature decreases from 340 °C to 265 °C because of enhanced geometry-driven frustration of spin ordering in finer particles. The Curie point shifts to lower temperature (from 697 °C to 655 °C) due to internal stress and a single ferroelectric domain structure. Piezoelectricity in polycrystal ceramics indicates that multiferroic BiFeO3 is still ferroelectrically active at ∼40 nm scale.

Graphical abstract: Active ferroelectricity in nanostructured multiferroic BiFeO3 bulk ceramics

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Article information

DOI
https://doi.org/10.1039/C3TC31140F
Article type
Communication
Submitted
13 Jun 2013
Accepted
25 Jul 2013
First published
26 Jul 2013

J. Mater. Chem. C, 2013,1, 5628-5631

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Active ferroelectricity in nanostructured multiferroic BiFeO3 bulk ceramics

Q. Jiang, H. Ning, Q. Zhang, M. Cain, M. J. Reece and H. Yan, J. Mater. Chem. C, 2013, 1, 5628 DOI: 10.1039/C3TC31140F

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