Abstract
The results of the study of phase composition and electrophysical (resistivity, thermal coefficient of resistance, strain effect) and magnetoresistivity properties (anisotropic magnetoresistance) of thin films (up to 60 nm) of high-entropy alloys based on Al, Cu, Ni, Cr, Fe, Co, and Ti are presented. It was established that after the formation of samples by layered or simultaneous deposition on diffraction pattern, lines from two phases with an fcc lattice and traces of the bcc phase are fixed. After homogenization by thermal annealing of the samples, there remains one fcc phase s.s. HEA with lattice parameter a = 0.3604 nm and traces of the bcc phase (most likely s.s. α-Fe(Cr)), which is, in fact, single-phase. The study of electrophysical properties allowed for the first time to observe a two-stage plastic deformation with a large value of the strain coefficient (up to 90 units). The character of the dependence of MR versus induction indicates the realization of anisotropic magnetoresistance.
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Bereznyak, Y., Odnodvorets, L., Poduremne, D., Protsenko, I., Shabelnyk, Y. (2018). High-Entropy Film Alloys: Electrophysical and Magnetoresistive Properties. In: Fesenko, O., Yatsenko, L. (eds) Nanooptics, Nanophotonics, Nanostructures, and Their Applications. NANO 2017. Springer Proceedings in Physics, vol 210. Springer, Cham. https://doi.org/10.1007/978-3-319-91083-3_2
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DOI: https://doi.org/10.1007/978-3-319-91083-3_2
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