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15. Structure and magnetic properties of the Co2FeAl and Co2NiSi Heusler alloy films

Author

Malikov, I. V., Berezin, V. A., Fomin, L. A., Perevozchikova, Yu. A., Bannikova, N. S., Patrakov, E. I., Naumova, L. I., Semiannikova, A. A., Milyaev, M. A., Korenistov, P. S., Marchenkov, V. V., Malikov, I. V., Berezin, V. A., Fomin, L. A., Perevozchikova, Yu. A., Bannikova, N. S., Patrakov, E. I., Naumova, L. I., Semiannikova, A. A., Milyaev, M. A., Korenistov, P. S., and Marchenkov, V. V.

Abstract

The structural and magnetic properties (field dependences of the magnetization in magnetic fields of up to 6 kOe) of thin-film Co2FeAl, and Co2NiSi Heusler alloys grown by pulsed laser deposition on glass and a single-crystalline Al2O3 R-plane substrate at different growth temperatures (20, 280 and 420 °C) were studied. It was found that the stoichiometric composition of the films depends on the substrate temperature during growth and repeats the composition of the target for films grown at low temperatures. The films deposited on a single crystalline Al2O3 substrate have uniaxial magnetic anisotropy in the plane. © Published under licence by IOP Publishing Ltd.

Published
2020

19. Microstructure and magnetoresistance of Co90Fe10/Cu and Co65Fe26Ni9/Cu multilayers

Author

Milyaev, M. A., Naumova, L. I., Bannikova, N. S., Proglyado, V. V., Patrakov, E. I., Krinitsina, T. P., Ustinov, V. V., Milyaev, M. A., Naumova, L. I., Bannikova, N. S., Proglyado, V. V., Patrakov, E. I., Krinitsina, T. P., and Ustinov, V. V.

Abstract

Investigations of the microstructure, magnetic and magnetotransport properties of the optimized [Co90Fe10/Cu]n and [Co65Fe26Ni9/Cu] n multilayers with n = 32 prepared by magnetron sputtering are performed. These nanostructures exhibit the magnetoresistance values 83 % and 36 % at room temperature, respectively. The article presents the results of the influence of Co65Fe26Ni9 alloy on the magnetoresistance values and crystal structure of multilayers. In the periodic part of the nanostructure [Co65Fe26Ni9/Cu] n based on CoFeNi ternary alloy, besides fcc the formation of a bcc phase in the continuous boundaries around crystallites is found. © Published under licence by IOP Publishing Ltd.

Published
2019

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