Strong interfacial magnetic coupling in epitaxial bilayers of LaCoO3/LaMnO3 prepared by chemical solution deposition
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Abstract
We report the synthesis of high quality epitaxial bilayers of LaMnO3/LaCoO3 (LCO/LMO) on (001) LaAlO3, by spin-coating of a polymeric aqueous solutions. The bilayer shows a very large increase of the magnetization coercive field (≈ 3000%) with respect to the isolated LMO or LCO films. We suggest that the origin of this effect is a strong Mn4 +–O–Co2 + exchange interaction at the interface. Our results demonstrate that a simple chemical method is able to produce high quality epitaxial heterostructures in which interfacial effects can modify substantially the properties of the individual layers
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Vila-Fungueiriño, J.M., Rivas Murias, B. & Rivadulla, F. (2014). Strong interfacial magnetic coupling in epitaxial bilayers of LaCoO3/LaMnO3 prepared by chemical solution deposition. Thin Solid Films, 553(28), 81-84. https://doi.org/10.1016/j.tsf.2013.11.060
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https://doi.org/10.1016/j.tsf.2013.11.060Sponsors
We thank financial support from the Ministerio de Economía y Competitividad (Spain) through the project MAT2010-16157, European Research Council through the project ERC StG-259082, 2DTHERMS, and Xunta de Galicia through the project 2012-CP071. J.M. V-F also acknowledges the MECO for support with a PhD grant from the FPI program. The authors thank to NT-MDT Europe BV for the AFM images
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