Multiferroic BaTiO3-CoFe2O4 nanostructures

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Multiferroic BaTiO3-CoFe2O4 nanostructures

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dc.contributor.author Zheng, H.
dc.contributor.author Wang, J.
dc.contributor.author Lofland, S. E.
dc.contributor.author Ma, Z.
dc.contributor.author Mohaddes-Ardabili, L.
dc.contributor.author Zhao, T.
dc.contributor.author Salamanca-Riba, L.
dc.contributor.author Shinde, S. R.
dc.contributor.author Ogale, S. B.
dc.contributor.author Bai, Feiming
dc.contributor.author Viehland, D.
dc.contributor.author Jia, Y.
dc.contributor.author Schlom, D. G.
dc.contributor.author Wuttig, M.
dc.contributor.author Roytburd, A.
dc.contributor.author Ramesh, R.
dc.date.accessioned 2012-10-29T07:31:50Z
dc.date.available 2012-10-29T07:31:50Z
dc.date.copyright 2004
dc.date.issued 2012-10-29
dc.identifier.citation Zheng, H., Wang, J., Lofland, S. E., Ma, Z., Mohaddes-Ardabili, L., Zhao, T. et al. (2004). Multiferroic BaTiO3-CoFe2O4 nanostructures. Science, 303(5658), 661-663.
dc.identifier.uri http://hdl.handle.net/10220/8818
dc.description.abstract We report on the coupling between ferroelectric and magnetic order parameters in a nanostructured BaTiO3-CoFe2O4 ferroelectromagnet. This facilitates the interconversion of energies stored in electric and magnetic fields and plays an important role in many devices, including transducers, field sensors, etc. Such nanostructures were deposited on single-crystal SrTiO3 (001) substrates by pulsed laser deposition from a single Ba-Ti-Co-Fe-oxide target. The films are epitaxial in-plane as well as out-of-plane with self-assembled hexagonal arrays of CoFe2O4 nanopillars embedded in a BaTiO3 matrix. The CoFe2O4 nanopillars have uniform size and average spacing of 20 to 30 nanometers. Temperaturedependent magnetic measurements illustrate the coupling between the two order parameters, which is manifested as a change in magnetization at the ferroelectric Curie temperature. Thermodynamic analyses show that the magnetoelectric coupling in such a nanostructure can be understood on the basis of the strong elastic interactions between the two phases.
dc.language.iso en
dc.relation.ispartofseries Science
dc.rights © 2004 American Association for the Advancement of Science.
dc.subject DRNTU::Engineering::Materials::Nanostructured materials
dc.title Multiferroic BaTiO3-CoFe2O4 nanostructures
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1126/science.1094207

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