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Published on: May 17, 2018
Theory of static magnetization of magnetopolymer composites: The second virial approximation
Ekaterina A Elfimova1, Larisa Yu Iskakova1, Anna Yu Solovyova1
1Ural Mathematical Center, Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg 620000, Russia.
Abstract:
This paper deals with a theoretical study of the static magnetization of a composite, consisting of nanodisperse single-domain ferromagnetic particles immobilized in a nonmagnetic medium. This situation is typical for magnetopolymer systems-smart materials, which found applications in high industrial and biomedical applications. It is supposed that the composite was polymerized without an external magnetic field; after curing the particles retain the spatial distribution and orientation of their axes of easy magnetization that they had before the host medium polymerization. Our results demonstrate that, in contrast to ferrofluids with a liquid host medium, a magnetic interparticle interaction provokes a decrease of the macroscopic magnetization of the system.
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