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Single-domain multiferroic BiFeO3 films
- Source :
- Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016), Nature Communications
- Publication Year :
- 2016
- Publisher :
- Nature Portfolio, 2016.
-
Abstract
- The strong coupling between antiferromagnetism and ferroelectricity at room temperature found in BiFeO3 generates high expectations for the design and development of technological devices with novel functionalities. However, the multi-domain nature of the material tends to nullify the properties of interest and complicates the thorough understanding of the mechanisms that are responsible for those properties. Here we report the realization of a BiFeO3 material in thin film form with single-domain behaviour in both its magnetism and ferroelectricity: the entire film shows its antiferromagnetic axis aligned along the crystallographic b axis and its ferroelectric polarization along the c axis. With this we are able to reveal that the canted ferromagnetic moment due to the Dzyaloshinskii–Moriya interaction is parallel to the a axis. Furthermore, by fabricating a Co/BiFeO3 heterostructure, we demonstrate that the ferromagnetic moment of the Co film does couple directly to the canted moment of BiFeO3.<br />The coupling of ferroelectric and antiferromagnetic order in BiFeO3 makes it appealing for applications however the presence of domain structure acts to undermine this potential. Here, the authors demonstrate BiFeO3 thin films with a single domain of electrical polarization and canted antiferromagnetic order.
- Subjects :
- Physics
Multidisciplinary
Condensed matter physics
Magnetism
Science
General Physics and Astronomy
02 engineering and technology
General Chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Ferroelectricity
Article
General Biochemistry, Genetics and Molecular Biology
Condensed Matter::Materials Science
Piezoresponse force microscopy
Ferromagnetism
0103 physical sciences
Antiferromagnetism
Multiferroics
Condensed Matter::Strongly Correlated Electrons
Single domain
Thin film
010306 general physics
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 7
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....67bd16f9c8ff8a83121f0b7fba2c3826