https://doi.org/10.1140/epjs/s11734-024-01307-y
Regular Article
Slow remagnetization of ferrofluids with internal structures
Ural Federal University, Lenina Avenue, 620083, Yekaterinburg, Russia
Received:
30
April
2024
Accepted:
26
August
2024
Published online:
20
September
2024
We present computer simulations of magnetization dynamics of a ferrofluid whose particles can form internal heterogeneous structures. Our results demonstrate that evolution of these structures significantly affects rate of the fluid remagnetization. Due to this evolution, characteristic time of the magnetization relaxation of the simulated ferrofluids after stepwise change of the applied field was in the range of 2.9·10–3 to 1.7 s; that is several orders of magnitude more than the relaxation time in the systems of the single, non-interacting particles. The obtained results can be useful both for basic research of ferrofluids, as well as for bio-medical applications of these systems, like magnetic hyperthermia, magnetic biosensing, etc.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
