Fizika Nizkikh Temperatur: Volume 48, Number 7 (July 2022), p. 614-620    ( to contents , go back )

Changes in the coercivity fields of magnetoresistance hysteresis loops under the influence of a spin-polarized current flowing through the half-metal CrO2 nanocomposite system

E. Yu. Beliayev, I. G. Mirzoiev, V. V. Andrievskii, A. V. Terekhov, Yu. A. Kolesnichenko, and V. A. Horielyi

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine Kharkiv 61103, Ukraine
E-mail: beliayev@gmail.com

I. A. Chichibaba

National Technical University «Kharkiv Polytechnic Institute», Kharkiv 61100, Ukraine
pos Анотація:414

Received March 16, 2022, published online May 20, 2022

Abstract

Using the example of a pressed sample consisting of chromium dioxide nanoparticles coated with insulating shells, we study the relationship between the electronic transport system and m agnetic subsystem in granular spin-polarized metals. It is shown that the spin-polarized tunneling transport current can affect the coercivity fields of the percolation cluster formed in the sample with decreasing temperature.

Key words:  spin-polarized metal, chromium dioxide, pfrercolation, coercive force, granular system, tunneling conductivity.

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