Jiang, Q H*; Ning, H P*; Zhang, Q*; Cain, M G; Reece, M J*; Yan, H* (2013) Active ferroelectricity in nanostructured multiferroic BiFeO3 bulk ceramics. J. Mater. Chem. C, 1 (36). pp. 5628-5631.

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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 ºC to 265 ºC because of enhanced geometry-driven frustration of spin ordering in finer particles. The Curie point shifts to lower temperature from 697 ºC to 655 ºC) 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.

Item Type:	Article
Subjects:	Advanced Materials Advanced Materials > Functional Materials
Identification number/DOI:	10.1039/c3tc31140f
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5910

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