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Engineering Polarization Rotation in Ferroelectric Bismuth Titanate
- Publication Year :
- 2013
-
Abstract
- Here, we report a combined experimental-theoretical study showing that collective application of rare earth doping on A-site and epitaxial strain to ferroelectric bismuth titanate does not lead to a very large c-axis polarization as reported previously. Further first principles calculations based on the examination of polarization tensor suggest that simultaneous Bi and Ti site doping could result in moderate polarization along c-axis of bismuth titanate which is typically a preferential axis of film growth and thus enabling c axis oriented films to have appreciable polarization. This approach could also be applicable to other ferroic oxides where one can correlate the doping, epitaxial strain, and polarization to design materials compositions resulting in epitaxial films grown along desired directions yielding substantial polarization.<br />16 pages, two figures
- Subjects :
- Condensed Matter - Materials Science
Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Bismuth titanate
Doping
Oxide
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
Epitaxy
Polarization (waves)
Ferroelectricity
chemistry.chemical_compound
chemistry
Ab initio quantum chemistry methods
Thin film
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....74f4cc1196015591da81419dd44e722d