Multiferroic (BaTiO3-BiFeO3) × 15 multilayer heterostructures show high magnetoelectric (ME)
coefficients aME up to αME up to 24 V/cm·Oe at 300 K. This value is much higher than that of a single-phase
BiFeO3 reference film (αME = 4.2 V/cm·Oe). We found clear correlation of ME coefficients with
increasing oxygen partial pressure during growth. ME coupling is highest for lower density of oxygen
vacancy-related defects. Detailed scanning transmission electron microscopy and selected area
electron diffraction microstructural investigations at 300K revealed antiphase rotations of the oxygen
octahedra in the BaTiO3 single layers, which are an additional correlated defect structure of the
multilayers.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:31214 |
| Date | 13 August 2018 |
| Creators | Lorenz, Michael, Wagner, Gerald, Lazenka, Vera, Schwinkendorf, Peter, Modarresi, Hiwa, Van Bael, Margriet J., Vantomme, André, Temst, Kristiaan, Oeckler, Oliver, Grundmann, Marius |
| Contributors | KU Leuven |
| Publisher | American Institute of Physics, Universität Leipzig |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 0003-6951, 1077-3118, 012905 |
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