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Tuning thermo-magnetic properties of dilute-ferromagnet multilayers using RKKY interaction

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arxiv 2005.08846 v1 pith:L7T7PVBH submitted 2020-05-18 cond-mat.mes-hall cond-mat.mtrl-sci

Dmytro M. Polishchuk , Milton Persson , Mykola M. Kulyk , Erik Holmgren , Gabriele Pasquale , Vladislav Korenivski This is my paper · ORCID
classification cond-mat.mes-hallcond-mat.mtrl-sci
keywords curiedilute-ferromagnetmagneticmultilayersrkkyadditionallyaffectsallowing
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We demonstrate a 20-fold enhancement in the strength of the RKKY interlayer exchange in dilute-ferromagnet/normal-metal multilayers by incorporating ultrathin Fe layers at the interfaces. Additionally, the resulting increase in the interface magnetic polarization profoundly affects the finite-size effects, sharpening the Curie transition of the multilayer, while allowing to separately tune its Curie temperature via intralayer magnetic dilution. These results should be useful for designing functional materials for applications in magneto-caloric micro-refrigeration and thermally-assisted spin-electronics.

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