Study of magnetic properties of cobalt nanofilms under external field conditions using mathematical modeling
A.Yu.. Fedotov, O.Yu.. Severyukhina, A.Yu.. Salomatina
Udmurt Federal Research Center UB RAS
DOI: 10.26456/pcascnn/2025.17.497
Original article
Abstract: In this paper, we study the magnetic characteristics of cobalt nanofilms. Cobalt films are of interest for integration into hybrid systems, which opens up new possibilities for the development of multifunctional devices. The aim of the study is to model the magnetic characteristics of cobalt nanofilms with different thicknesses under the influence of various magnetic fields. To achieve this goal, a mathematical model was used that describes the motion of atoms and the reorientation of their spins. The model is based on the Langevin and Landau-Lifshitz-Gilbert equations for describing the system dynamics. The results of the study show the influence of the external magnetic field on the magnetic characteristics of cobalt films with a thickness of 1,8 to 7,1 nm. With an increase in the film thickness, a decrease in the magnetization modulus is observed. The value of the magnetization modulus of the system shows a nonlinear dependence on both the number of crystalline cobalt layers and the magnitude of the external magnetic field. At different values of magnetic induction, changes in the behavior of magnetization are recorded, including the formation of domains and domain walls. The developed model allows analyzing the influence of various factors on the magnetic properties of materials, which can contribute to the optimization of thin-film structures for use in spintronics. The study emphasizes the importance of understanding the magnetic properties of thin films for the development of new technologies in this area.
Keywords: mathematical modeling, molecular dynamics, spin dynamics, ferromagnet, thin films, magnetic properties
- Aleksey Yu.. Fedotov – Dr. Sc., Leading Researche, Udmurt Federal Research Center UB RAS
- Olesya Yu.. Severyukhina – Ph. D., Researcher,, Udmurt Federal Research Center UB RAS
- Anastasia Yu.. Salomatina – Postgraduate student, Udmurt Federal Research Center UB RAS
For citation:
Fedotov A.Yu.., Severyukhina O.Yu.., Salomatina A.Yu.. Issledovanie magnitnykh svojstv nanoplenok kobalta v usloviyakh vneshnego polya metodom matematicheskogo modelirovaniya [Study of magnetic properties of cobalt nanofilms under external field conditions using mathematical modeling], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2025, issue 17, pp. 497-505. DOI: 10.26456/pcascnn/2025.17.497. ⎘
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