Controlling magnetic anisotropy is an important objective towards engineering novel magnetic device concepts in oxide electronics. In thin film manganites, magnetic anisotropy is weak and it is primarily determined by the substrate, through induced structural distortions resulting from epitaxial mismatch strain. On the other hand, in cobaltites, with a stronger spin orbit interaction, magnetic anisotropy is typically much stronger. In this paper, we show that interfacing La0.7Sr0.3MnO3 (LSMO) with an ultrathin LaCoO3 (LCO) layer drastically modifies the magnetic anisotropy of the manganite, making it independent of the substrate and closer to the magnetic isotropy characterizing its rhombohedral structure. Ferromagnetic resonance measurements evidence a tendency of manganite magnetic moments to point out-of-plane suggesting non collinear magnetic interactions at the interface. These results may be of interest for the design of oxide interfaces with tailored magnetic structures for new oxide devices.

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oxide interfaces ferromagnetic resonance magnetic device concepts manganite magnetic moments electronics substrate through induced structural distortions lacoo3 lco epitaxial mismatch spin orbit interaction magnetic anisotropy non collinear magnetic interactions interfacing la07sr03mno3 lsmo

K. Nagy,F. A. Cuellar,D. Hernandez-Martin,N. M. Nemes,F. Mompean,M. Garcia-Hernandez,A. Rivera-Calzada,Z. Sefrioui,N. Reyren,T. Feher,.Modified magnetic anisotropy at LaCoO3/La0.7Sr0.3MnO3 interfaces. 5 (9),.

K. Nagy,F. A. Cuellar,D. Hernandez-Martin,N. M. Nemes,F. Mompean,M. Garcia-Hernandez,A. Rivera-Calzada,Z. Sefrioui,N. Reyren,T. Feher,"Modified magnetic anisotropy at LaCoO3/La0.7Sr0.3MnO3 interfaces" 5

K. Nagy,F. A. Cuellar,D. Hernandez-Martin,N. M. Nemes,F. Mompean,M. Garcia-Hernandez,A. Rivera-Calzada,Z. Sefrioui,N. Reyren,T. Feher,"Modified magnetic anisotropy at LaCoO3/La0.7Sr0.3MnO3 interfaces"