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American Chemical Society, Nano Letters, 11(15), p. 7355-7361, 2015

DOI: 10.1021/acs.nanolett.5b02720

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Interfacial Control of Magnetic Properties at LaMnO<sub>3</sub>/LaNiO<sub>3</sub> Interfaces

Journal article published in 2015 by M. Gibert, M. Viret ORCID, A. Torres-Pardo, C. Piamonteze ORCID, P. Zubko, N. Jaouen, J.-M. Tonnerre, A. Mougin, J. Fowlie, S. Catalano, A. Gloter, O. Stéphan, J.-M. Triscone
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This paper is available in a repository.

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Abstract

The functional properties of oxide heterostructures ultimately rely on how the electronic and structural mismatches occurring at interfaces are accommodated by the chosen materials combination. We discuss here LaMnO3/LaNiO3 heterostructures, which display an intrinsic interface structural asymmetry depending on the growth sequence. Using a variety of synchrotron-based techniques, we show that the degree of intermixing at the monolayer scale allows interface-driven properties such as charge transfer and the induced magnetic moment in the nickelate layer to be controlled. Further, our results demonstrate that the magnetic state of strained LaMnO3 thin films dramatically depends on interface reconstructions.