Constrained ferroelectric domain orientation in (BiFeO3)m(SrTiO3)n superlattice

Details Constrained ferroelectric domain orientation in (BiFeO3)m(SrTiO3)n superlattice Constrained ferroelectric domain orientation in (BiFeO3)m(SrTiO3)n superlattice

2009-12-02

arxiv.org/abs/0912.0358v1

Appl. Phys. Lett. 96 (2010) 022902

Physics

Condensed Matter

Materials Science

12 pages, 4 figures, To be published in APL

Scientific paper

10.1063/1.3275726

Ferroelectric domains were investigated using piezoresponse force microscopy in superlattices composed of multiferroic BiFeO3 and SrTiO3 layers. Compared to single BiFeO3 thin films, a reduction in the domains size and a suppression of the in-plane orientation of domains are observed in a superlattice of (BiFeO3)4(SrTiO3)8, suggesting a constrained ferroelectric domain orientation along the out-of-plane <001> direction. Such modification of domain size and orientation in BiFeO3-based heterostructures could play a vital role on engineering the domains and domain wall mediated functional properties necessary for device applications

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