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Information × Registration Number 0225U001021, (0122U000785) , R & D reports Title Multicomponent film materials: correlation between electrophysical and magnetoresistive properties and elements concentration popup.stage_title Магніторезистивні властивості 5-6-ти компонентних плівкових сплавів Head Protsenko Serhii I., Доктор фізико-математичних наук Registration Date 23-01-2025 Organization Sumy State University popup.description1 Establishment of interrelation between resistivity, thermal coefficient of resistance, strain coefficient and giant magnetoresistance of two classes of high-entropy film alloys: based on bcc-, fcc- and hpp-metals versus atoms concentration and samples thickness which will allow to calculate the basic electrical transfer parameters of film materials, to explain the electron scattering mechanisms аnd to correctly interpret the results on the magnetoresistance popup.description2  Реферат англійською (не більше 2000 знаків) The possibility of applying the principle of additivity of physical quantities, which are the own characteristics of alloy atoms, is justified. A theoretical analysis of the concentration dependence of the lattice parameter, resistivity in the magnetic field, strain coefficient (SC), magnetoresistance, and paramagnetic magnetization for high-entropy alloys (HEA) films was carried out. Approbation of the proposed methodology for calculating physical properties and characteristics (temperature coefficient of resistance - TCR, strain coefficient - SC, lattice parameter, Debye temperature) of equiatomic 5-6 component solid solutions (s.s.) based on Fe, Co, Ni, Cu, Cr, Al was carried out . Satisfactory highcorrespondence of the calculated experimental results for film s.s. was obtained in the case of TCR, SC and lattice parameter. For the first time, a measure of the quantitative characteristics of the influence of the concentration of the proppant element on electrophysical quantities and characteristics, integral and differential concentration coefficients, the value and sign of which provide information about the nature of the influence of this or that proppant element, was proposed. A theoretical model based on Langevin's theory is proposed for calculations of paramagnetic magnetization, including saturation magnetization for multicomponent and high-entropy alloys in the film or bulk state. The calculated results agree well with the experimental data of other authors. The results have a high degree of novelty, as they were obtained for the first time and correspond to world achievements in the study of physical and kinetic HEA properties. It has been established that sensitive elements of sensor electronics based on multicomponent film alloys can have advantages over other nanosized materials, which is related to their phase and temperature stability in a wide operating range Product Description popup.authors Lobodiuk Olena S. Odnodvorets Larysa V. Protsenko Ivan Yu. Protsenko Serhii I. Rylova Anastasiia K. Shabelnyk Yurii M. Shumakova Nataliia I. popup.nrat_date 2025-01-23 Close