Abstract
A theoretical model of dynamic susceptibility and magnetoviscous effect in non-dilute polydisperse ferrofluids with magnetically interacting particles is proposed. This system is considered as homogeneous magnetic colloid of interacting particles, without any heterogenous aggregates. Analysis is based on the mathematically regular approximation of the pair interparticle interaction combined with the effective field method, which leads to very good agreement with the laboratory and computer experiments in the case of dilute ferrofluids with non-interacting particles and with computer simulations of monodisperse ensembles of magnetically interacting ferromagnetic particles.
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Acknowledgements
This works has been carried out under financial support of the Russian Fund of Fundamental Investigation, grant; 21-52-12013 as well as the Program of the Ministry of Science and Education of Russian Federation, project FEUZ-2023-0020.
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AZ—the main idea and physical model. LI—mathematical transformations and results.
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Structural Transformations and Non-Equilibrium Phenomena in Multicomponent Disordered Systems. Guest editors: Liubov Toropova, Irina Nizovtseva.
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Zubarev, A.Y., Iskakova, L.Y. To the theory of dynamical properties of non-dilute polydisperse ferrofluids. Eur. Phys. J. Spec. Top. 232, 1305–1313 (2023). https://doi.org/10.1140/epjs/s11734-023-00820-w
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DOI: https://doi.org/10.1140/epjs/s11734-023-00820-w