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Registration Number

0221U101320, 0118U003580 , R & D reports

Title

Phase composition, electrophysical and magnetoresistive properties multicomponent (high-entropy) film alloys

Head

Protsenko Ivan Yu, Доктор фізико-математичних наук

Registration Date

19-01-2021

Organization

Sumy State University

Description

As a research result, a method for formation of high-entropy film alloys (HEA) by simultaneous or layer-by-layer condensation of 5-6 components with subsequent annealing to 700-900 K was proposed. In the framework of the theoretical models of Tellier, Tosser and Pichard, the electrical transmission parameters are calculated. For the first time, a two-stage strain effect was observed with an increase of the strain coefficient to 90 units. Models for thermal coefficient of resistance, strain coefficient and magnetoresistance have been developed and tested at the phenomenological level. The correspondence of calculations and experimental data is from 12 to 20%. For the first time in film HEA the conditions for the transformation of an isotropic magnetoresistance into an anisotropic one have been established. The correlation between the entropy degree of film alloys with different architecture and their electrophysical and magnetoresistive properties is established.

Product Description

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Bereznyak Yuliya S
Klochok Vladyslav S.
Kulak Alina S
Lobodyuk Olena S
Odnodvorets Larysa V
Poduremne Dmytro V
Rylova Anastasiia K
Saltykov Dmytro I
Stepanenko Andrii O
Shpetnyi Ihor O
Shumakova Nataliya I