Exploration of Artificial Multiferroic Thin-Film Heterostructures using Composition SpreadsApplied Physics Letters
AbstractWe have fabricated a series of composition spreads consisting of ferroelectric BaTiO3 and piezomagnetic CoFe2O4 layers of varying thicknesses modulated at nanometer level in order to explore artificial magnetoelectricthin-film heterostructures. Scanning microwavemicroscopy and scanning superconducting quantum interference device microscopy were used to map the dielectric and magnetic properties as a function of continuously changing average composition across the spreads, respectively. Compositions in the middle of the spreads were found to exhibit ferromagnetism while displaying a dielectric constant as high as ≈120.
Citation InformationK.-S. Chang, M. A. Aronova, C.-L. Lin, M. Murakami, et al.. "Exploration of Artificial Multiferroic Thin-Film Heterostructures using Composition Spreads" Applied Physics Letters Vol. 84 Iss. 16 (2004) p. #3091
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