Abstract
The magnetic properties of heterostructures consisting of two films are studied. The upper layer involves rare-earth intermetallic nanostructured superlattices consisting of exchange-coupled layers (TbCo2/FeCo)n (TCFC), and the lower layer includes either epitaxial manganite La0.7Sr0.3MnO3 (LSMO) with optimum strontium doping or an epitaxial film of an yttrium–iron garnet Y3Fe5O12 (YIG) with a Bi additive. TCFC is a ferromagnet having high Curie temperature and provides controllable induced magnetic anisotropy. Experimental studies showed that the interlayer interaction of the TCFC/LSMO heterostructure is antiferromagnetic. There was an increase in the FMR line width in the structures due to the flow of a spin current through the interface between two films. There was electric voltage in the TCFC/YIG heterostructure induced in the TCFC intermetallide film, due to an inverse spin Hall effect under ferromagnetic resonance conditions.
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ACKNOWLEDGMENTS
The authors are grateful to K.I. Constantinian, A.M. Petrzhik, V.L. Preobrazhenskii, and A.V. Shadrin for their useful discussion of the results and assistance in this study.
Funding
This work was performed within the framework of the state task and it was partially supported by the Russian Foundation for Basic Research (projects 18-57-16001, 19-07-00143, and 17-02-00145), and the LEMAC-LICS International Laboratory.
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Translated by A. Tulyabaev
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Ovsyannikov, G.A., Demidov, V.V., Shaikhulov, T.A. et al. Magnetic Interactions on Oxide Ferromagnet/Ferromagnetic Intermetallide Interface. Phys. Solid State 61, 1652–1657 (2019). https://doi.org/10.1134/S1063783419090191
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DOI: https://doi.org/10.1134/S1063783419090191