Výsledky vyhledávání - "Beleggia Marco"

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Dipolar Attraction of Superparamagnetic Nanoparticles

Autor: Durhuus, Frederik L., Beleggia, Marco, Frandsen, Cathrine

For superparamagnetic nanoparticles (SMNPs), it is often claimed that the rapid thermal fluctuations of their magnetic moments negates the magnetic dipolar attraction, hence preventing aggregation in liquid suspension. However we find that this is a

Externí odkaz: http://arxiv.org/abs/2410.17201

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Conservation laws for interacting magnetic nanoparticles at finite temperature

Autor: Durhuus, Frederik L., Beleggia, Marco, Frandsen, Cathrine

We establish a general Langevin Dynamics model of interacting, single-domain magnetic nanoparticles in liquid suspension at finite temperature. The model couples the LLG equation for the moment dynamics with the mechanical rotation and translation of

Externí odkaz: http://arxiv.org/abs/2308.13683

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High-susceptibility nanoparticles for micro-inductor core materials

Autor: Zambach, Mathias, Varón, Miriam, Knaapila, Matti, Ouyang, Ziwei, Beleggia, Marco, Frandsen, Cathrine

According to the laws of magnetism, the shape of magnetically soft objects limits the effective susceptibility. For example, spherical soft magnets cannot display an effective susceptibility larger than 3. Although true for macroscopic multi-domain m

Externí odkaz: http://arxiv.org/abs/2308.13407

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Magnetic levitation by rotation

Autor: Hermansen, Joachim Marco, Durhuus, Frederik Laust, Frandsen, Cathrine, Beleggia, Marco, Bahl, Christian R. H., Bjørk, Rasmus

Publikováno v: Physical Review Applied, 20, 044036, 2023

A permanent magnet can be levitated simply by placing it in the vicinity of another permanent magnet that rotates in the order of 200 Hz. This surprising effect can be easily reproduced in the lab with off-the-shelf components. Here we investigate th

Externí odkaz: http://arxiv.org/abs/2305.00812

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