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    nanoscience and nanotechnology: small is different

Growth and properties of Y3Fe5O12 - based nanoheterostructures for magnonic applications

Dr. Nikolai Sokolov
Ioffe Institute of Russian Academy of Sciences
Lunes, 25 Junio 2018 12:00


Yttrium iron garnet (Y3Fe5O12, YIG) is a well-known unique magnetic material, which found numerous applications in microwave technique and other fields. For further development of YIG-based devices for magnonic applications, it is desirable to control magnetic properties of YIG nanofilms. In this work, considerable attention was paid to formation and properties of the interfaces in heterostructures with 5-35 nm thick YIG epitaxial layers grown by laser molecular beam epitaxy on (Gd3Ga5O12, GGG) and (Nd3Ga5O12, NdGG) substrates. For characterization of magnetic properties of the heterostructures vectorial MOKE, VSM, XMCD, XRMR, PNR, FMR & SW propagation measurements were carried out. It was shown that proximity effects in Co/YIG nanostructures and strain engineering in YIG/NdGG heterostructures are very useful for modification of YIG nanolayer magnetic properties.

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