Structure and magnetic properties of FeCo nanotubes obtained in pores of ion track templates
Kaniukov E.Y. Shumskaya A.E. Kozlovskiy A.L. Zdorovets M.V. Trukhanov A.V. Zubar T.I. Tishkevich D.I. Vinnik D.A. Khairetdinova D.R. Evstigneeva S.A. Rusakov V.S. Rameev B.Z. Panina L.V.
April 2021Elsevier B.V.
Nano-Structures and Nano-Objects
2021#26
A detailed study of structural, electric and magnetic properties of FeCo-alloyed nanotubes (NTs) having a different iron to cobalt ratio with an outer diameter of 110 nm and a length/diameter aspect ratio of more than 100 was carried out. The nanotubes were produced by electrochemical deposition of metal in the pores of PET film template. Ion-track technology was used to produce templates with cylindrical pores. An increase in the deposition potential from U = 1.5 V to U=2.0 V led to a shift in the atomic ratio of metals in the FeCo alloy from 42 to 51 at.% in favour of cobalt as confirmed by energy dispersive analysis. Analysis of structural features by X-ray diffraction and the selected area electron diffraction revealed that at higher deposition potentials the degree of crystallinity of FeCo NTs increases from a nearly random orientation of crystallites at U=1.5 V to a textured polycrystal at U=2.0 V. This was also consistent with a corresponding increase in electrical conductivity. Based on the analysis of hysteresis curves and Mössbauer spectra, the dominant directions of the texture with respect of the NTs axis were established. An axial magnetic anisotropy and rather high magnetic coercivity (∼ 500 Oe for the orientation with the DC magnetic field parallel to tube axes) were observed and attributed to a dominant contribution of the shape anisotropy with a minor crystal anisotropy term due to the textured growth of the nanotubes. It was shown that the technology of electrochemical deposition in the ion-track template pores makes it possible to synthesize the nanotubes and nanowires with the structural and magnetic properties, which have a high interest with the point of view of a fundamental physics and their technological applications.
Electrodeposition , FeCo alloy , Ion track templates , Magnetic nanotubes , Magnetic properties , Mössbauer spectroscopy
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National University of Science and Technology, «MISIS», Leninsky Prospect 4, Moscow, 119049, Russian Federation
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, Skoriny str., 36, Minsk, 220141, Belarus
Engineering Profile Laboratory, L.N.Gumilyov Eurasian National University, Satpaev str. 5, Kazakhstan
Laboratory of Solid State Physics, Institute of Nuclear Physics, Ibragimov str. 1, Almaty, 050032, Kazakhstan
Department of Intelligent Information Technologies, Ural Federal University, Mira str. 19, Russian Federation
SSPA Scientific and Practical Materials Research Centre of NAS of Belarus, P. Brovki str. 19, Minsk, 220072, Belarus
South Ural State University, Lenin Prospect, 76, Chelyabinsk, 454080, Russian Federation
M.V. Lomonosov Moscow State University. Leninskie gory, 1, bld. 2, Moscow, 119991, Russian Federation
Zavoisky Physical-Technical Institute – Subdivision of the Federal Research Center “Kazan Scientific Center of Russian Academy of Sciences”, Kazan/Tatarstan, Russian Federation
Department of Physics, Gebze Technical University, Kocaeli, 41400, Turkey
Institute of Physics, Mathematics & IT, Immanuel Kant Baltic Federal University, A. Nevskogo 14, Kaliningrad, 236041, Russian Federation
National University of Science and Technology
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus
Engineering Profile Laboratory
Laboratory of Solid State Physics
Department of Intelligent Information Technologies
SSPA Scientific and Practical Materials Research Centre of NAS of Belarus
South Ural State University
M.V. Lomonosov Moscow State University. Leninskie gory
Zavoisky Physical-Technical Institute – Subdivision of the Federal Research Center “Kazan Scientific Center of Russian Academy of Sciences”
Department of Physics
Institute of Physics
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