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URN to cite this document: urn:nbn:de:bvb:703-epub-8864-0
Title data
Bilous, Oksana ; Okrugin, Kirill A. ; Lakkis, Ali ; Richter, Reinhard:
Self-diffusion in ferrogranulates : Stockmayer model revisited.
In: Journal of Molecular Liquids.
Vol. 446
(2026)
.
- 129210.
ISSN 1873-3166
DOI der Verlagsversion: https://doi.org/10.1016/j.molliq.2025.129210
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Project information
| Project title: |
Project's official title Project's id Vergröberungsdynamik ferromagnetischer granularer Netzwerke - Experiment und Simulation 453252565 Open Access Publizieren No information |
|---|---|
| Project financing: |
Deutsche Forschungsgemeinschaft |
Abstract
We present a systematic numerical study of a quasi-two-dimensional mixed system composed of Stockmayer-type dipolar particles and purely repulsive non-polar particles. By combining detailed cluster analysis with a quantitative evaluation of self-diffusion, we demonstrate how the interplay between particle area fraction, dipolar interactions, and an out-of-plane magnetic induction governs the structural organisation and dynamical behaviour of the mixture. We show that, in the absence of induction, isolated magnetic particles diffuse essentially in a Gaussian manner across all concentrations. At longer time scales, by contrast, the system enters a crowding-dominated diffusive regime, in which both the diffusion exponent and the non-Gaussianity vary monotonically with area fraction. Our findings provide a framework for interpreting diffusion phenomena in ferrogranular materials and pave the way for future experimental verification, particularly regarding induction-controlled cooling of non-magnetic components.
Further data
| Item Type: | Article in a journal |
|---|---|
| Keywords: | Magnetic multicore nanoparticles; Dynamic magnetic susceptibility; Magnetic anisotropy; Specific loss power; Brownian dynamics |
| DDC Subjects: | 500 Science 500 Science > 530 Physics |
| Institutions of the University: | Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Oliver Bäumchen |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-8864-0 |
| Date Deposited: | 06 Feb 2026 10:59 |
| Last Modified: | 06 Feb 2026 11:09 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/8864 |
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