Neutron diffraction investigations of magnetism in BiFeO(3) epitaxial films
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Date
2011-05-10
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley-Blackwell
Abstract
The recovery of a modulated magnetic structure in epitaxial BiFeO(3) thin films as revealed by neutron diffraction is reported. The magnetic structure in thin films is found to strongly depend on substrate orientation. The substrate orientation causes different strain-relaxation processes resulting in different thin-film crystal structures. The (110) oriented film with a monoclinic structural phase has a single-domain modulated magnetic structure where the magnetic moment lies in the HHL plane. For the (111) oriented film that has a rhombohedral structure, a modulated structure superimposed on the G-type antiferromagnetic order is found. These results indicate that slight structural modifications in the BiFeO(3) thin film cause drastic changes in the magnetic structure. © 2011, Wiley-Blackwell.
Description
Keywords
Thin films, Neutron diffraction, Magnetism, Polarization, Epitaxy, Crystal structure
Citation
Ratcliff, W., Kan, D., Chen, W.C., Watson, S., Chi, S.X., Erwin, R., McIntyre, G.J., Capelli, S.C., & Takeuchi, I. (2011). Neutron diffraction investigations of magnetism in BiFeO(3) epitaxial films. Advanced Functional Materials, 21(9), 1567-1574. doi:10.1002/adfm.201002125