This article is cited in 1 paper

XXVI International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 14 - March 17, 2022
Superconductivity

Local magnetic anisotropy in nanostructured FeCo–C coatings synthesized by green chemistry methods

E. A. Denisova^ab, S. V. Komogortsev^abc, L. A. Chekanova^b, D. S. Neznakhin^d, R. S. Iskhakov^bc, I. V. Nemtsev<sup>abe

a</sup> Siberian Federal University, Krasnoyarsk, Russia
^b L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
^c M. F. Reshetnev Siberian State University of Science and Technologies, Krasnoyarsk, Russia
^d Ural Federal University named after the First President of Russia B. N. Yeltsin, Yekaterinburg, Russia
^e Krasnoyarsk Scientific Center of SB RAS, Krasnoyarsk, Russia

Abstract: Fe–Co alloys attracting interest due to their high magnetic induction and Curie temperature, were synthesized by an eco friendly electroless deposition with carbohydrates as reducing agents. It was shown that Fe$_{1-x}$Co$_x$–C composite coatings retain high induction, while demonstrating an unusual behavior of magnetization at low temperatures. It was found that for each coating measured at different temperatures, there is a correlation between the local magnetic anisotropy constant K at a given temperature and the correlation radius of the local easy magnetization axis $R_{\mathrm{c}}$. The functional type of this correlation is typical for nanoparticles or nanogranules in a composite, which made it possible to estimate the volume and surface magnetic anisotropy constants of metal granules of FeCo–C coatings.

Keywords: magnetic anisotropy, FeCo–C coatings, electroless deposition, approach to magnetic saturation law.

Received: 29.04.2022
Revised: 29.04.2022
Accepted: 12.05.2022

DOI: 10.21883/FTT.2022.09.52805.14HH

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