Abstract:
Based on PET track etched membranes, arrays of layer nanowires 100 nm in diameter, consisting of alternating Ni/Cu and Co/Cu layers are grown by the matrix synthesis method. Galvanic deposition processes are studied and conditions for fabricating layer nanowires with different thicknesses for magnetic (Ni or Co) and nonmagnetic (Cu) layer components are determined. An electron microscopic study is performed to verify conditions for fabricating layer nanowires and to correct geometrical sizes of alternating layers. Magnetization curves of produced arrays of layer nanowires are measured by vibration magnetometry methods at room temperature for two extreme orientations of a scanning magnetic field, i.e., parallel and perpendicular ones with respect to the nanowire growth axis. It is shown that the magnetic anisotropy of the nanowire array is controlled not only by the chemical composition, but also the thickness and alternation period of magnetic metal layers in nanowires. The dependence of the magnetostatic energy and demagnetizing field in the synthesized layer nanowires on the magnetic metal filling factor is numerically evaluated; the results are in qualitative agreement with experimental observations.
This study was supported by the Ministry of Education and Science of the Russian Federation within the State contracts of the Federal Scientific Research Center “Crystallography and Photonics” of the Russian Academy of Sciences and the Kazan Scientific Center of the Zavoisky Physico-Technical Institute, Russian Academy of Sciences, project no. AAAA-A18-118041760011-2. Microscopic studies were supported by the Russian Foundation for Basic Research, project no. 18-02-00515_а.
Citation:
D. A. Cherkasov, D. L. Zagorskii, R. I. Khaibullin, A. È. Muslimov, I. M. Doludenko, “Structure and magnetic properties of layered nanowires of 3$d$-metals, fabricated by the matrix synthesis method”, Fizika Tverdogo Tela, 62:9 (2020), 1531–1541; Phys. Solid State, 62:9 (2020), 1695–1705
\Bibitem{CheZagKha20}
\by D.~A.~Cherkasov, D.~L.~Zagorskii, R.~I.~Khaibullin, A.~\`E.~Muslimov, I.~M.~Doludenko
\paper Structure and magnetic properties of layered nanowires of 3$d$-metals, fabricated by the matrix synthesis method
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 9
\pages 1531--1541
\mathnet{http://mi.mathnet.ru/ftt8329}
\crossref{https://doi.org/10.21883/FTT.2020.09.49782.28H}
\elib{https://elibrary.ru/item.asp?id=44154242}
\transl
\jour Phys. Solid State
\yr 2020
\vol 62
\issue 9
\pages 1695--1705
\crossref{https://doi.org/10.1134/S1063783420090048}
Linking options:
https://www.mathnet.ru/eng/ftt8329
https://www.mathnet.ru/eng/ftt/v62/i9/p1531
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I. V. Razumovskaya, N. P. Kovalets, S. A. Bedin, Yu. V. Grigor'ev, “Agglomeration of Nanowires on a Substrate for Surface-Enhanced Raman Scattering”, J. Exp. Theor. Phys., 132:5 (2021), 818
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