najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-980Research ArticleOTHERSOTHERSCarbon encapsulation of magnetic metal nanoparticles: correlation between nanoscale structure of carbon matrix and electromagnetic propertiesKozyrevS. V.

St. Petersburg

SVKozyrev@spbcas.ruIvanov-OmskiiV. I.

St. Petersburg

YastrebovS. G.

St. Petersburg

Yastrebov@mail.ioffe.ruZvonarevaT. K.

St. Petersburg

ChekulaevM. S.

St. Petersburg

SiklitskayaA. V.

St. Petersburg

Center for Advanced StudiesRussian FederationA.F.Ioffe Physicotechnical Institute RASRussian Federation20141508202551192194Copyright © Kozyrev S.V., Ivanov-Omskii V.I., Yastrebov S.G., Zvonareva T.K., Chekulaev M.S., Siklitskaya A.V., 20252025Kozyrev S.V., Ivanov-Omskii V.I., Yastrebov S.G., Zvonareva T.K., Chekulaev M.S., Siklitskaya A.V.Kozyrev S.V., Ivanov-Omskii V.I., Yastrebov S.G., Zvonareva T.K., Chekulaev M.S., Siklitskaya A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/980

The dependence between the variation of microwave losses by a − C : H(Co) films measured at 10 GHz and alteration of Co content in the film was investigated. It was shown that microwave losses attain maximal value at approximately 33at.% of cobalt. This dependence may be explained in terms of the formation of Co-containing clusters having various shapes. Because of property of conductive flakes to absorb microwaves, fragments of graphene modified with Co are considered as candidates for the microwave absorption. Estimations of the flake size using Raman and transmission electron microscopy data allow reproduce initial conditions for mathematical simulation of physical properties of the flakes.

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The authors declare that there are no conflicts of interest present.