Large Electric Polarization and Exchange Bias in Multiferroic BiFeO3

Low‐leakage BiFeO3 films have been grown with saturated ferroelectric hysteresis loops (see figure) and a very large remanent polarization. The antiferromagnetic nature of BiFeO3 films is confirmed by the appearance of an exchange bias in BiFeO3‐based spin‐valve multilayers. The results imply that t...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2006-06, Vol.18 (11), p.1445-1448
Main Authors: Dho, J., Qi, X., Kim, H., MacManus-Driscoll, J. L., Blamire, M. G.
Format: Article
Language:English
Subjects:
Ferroelectric materials
Ferromagnetic materials
Online Access:Get full text
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Summary:Low‐leakage BiFeO3 films have been grown with saturated ferroelectric hysteresis loops (see figure) and a very large remanent polarization. The antiferromagnetic nature of BiFeO3 films is confirmed by the appearance of an exchange bias in BiFeO3‐based spin‐valve multilayers. The results imply that there is potential for room‐temperature applications of BiFeO3 that combine ferroelectric and antiferromagnetic functionality.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200502622