Helimagnetic and Crystallographic Growth Textures of Dysprosium Nanolayers on Co90Fe10, Nb, and β-Ta Buffer Layers

L. I. Naumova; Наумова Л. И.; R. S. Zavorпitsyn; Заворницын Р. С.; M. A. Milyaev; Миляев М. А.; D. I. Devyaterikov; Девятериков Д. И.; A. S. Rusalina; Русалина А. С.; T. P. Krinitsina; Криницина Т. П.; A. Yu. Pavlova; Павлова А. Ю.; V. V. Proglyado; Проглядо В. В.; V. V. Ustinov; Устинов В. В.

doi:10.31857/S0015323023600600

Helimagnetic and Crystallographic Growth Textures of Dysprosium Nanolayers on Co90Fe10, Nb, and β-Ta Buffer Layers

Authors: Naumova L.I.¹^,2, Zavorпitsyn R.S.¹^,2, Milyaev M.A.¹^,2, Devyaterikov D.I.¹, Rusalina A.S.², Krinitsina T.P.¹, Pavlova A.Y.¹, Proglyado V.V.¹, Ustinov V.V.¹^,2
Affiliations:
1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
2. Ural Federal University
Issue: Vol 124, No 8 (2023)
Pages: 692-702
Section: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
URL: https://journal-vniispk.ru/0015-3230/article/view/139479
DOI: https://doi.org/10.31857/S0015323023600600
EDN: https://elibrary.ru/QDWNCA
ID: 139479

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Abstract

Dysprosium nanolayers of various thicknesses are made by magnetron sputtering on Al2O3 (R) substrates, as well as using buffer layers Co90Fe10, β -Ta and Nb. The correlation between the crystallographic texture and the peculiarities of the temperature dependence of the electrical resistance of polycrystalline dysprosium films was investigated. It was found that when Dy is sputtered directly on Al2O3 (R), a two-component texture is formed in the nanolayer of the rare earth metal. In one component, the hexagonal axis is parallel and in the other, it is perpendicular to the plane of the film. It has been shown that when Dy is sprayed on the buffer layer β -Ta, the microstructures of Al2O3 and Dy are matched through β -Ta, and the perfection of the two-component texture increases. In the antiferromagnetic state, the texture components become phases with different orientation of the magnetic helicoid axis, and the formation of antiferromagnetic ordering occurs at different temperatures.

Keywords

dysprosium, β-tantalum, nanolayer, crystallographic texture, magnetic helicoid, electrical resistance

References

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