Magnetic Structure of Multiferroic BiFeO3 Film with Engineered Ferroelectric Domains
- Michigan State University, East Lansing
- University of Wisconsin
- Ames Laboratory
- Ames Laboratory and Iowa State University
- HSX Laboratory, University of Wisconsin-Madison
We report on neutron scattering and piezoresponse force microscopy studies of multiferroic BiFeO{sub 3} films epitaxially grown on vicinal SrTiO{sub 3} substrates. We find that these BiFeO{sub 3} films exhibit a G-type antiferromagnetic structure modulated with cycloidal spiral magnetic ordering with the features of magnetic domains depending upon the ferroelectric domain states: a single antiferromagnetic domain for the films with a ferroelectric monodomain while two- or multiantiferromagnetic domains existing in the films displaying two- or four-ferroelectric variants, respectively. These results imply the correlation between ferroelectric and magnetic order parameters in the BiFeO{sub 3} films and the expected strong magnetoelectric coupling makes these multiferroic films promising candidates for device applications with the capability to tune the magnetism using an electric field.
- Research Organization:
- Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 991691
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 13 Vol. 82; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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