Impact of magnetic domains on magnetic flux concentrators

•Micromagnetic simulations can offer an accurate modelling of magnetic flux concentrators.•Magnetic domains become relevant in magnetic flux concentrators when scaling technology.•MuMax3 and COMSOL Multiphysics show comparable results for magnetic simulations. The impact of magnetic domains in magne...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2021-10, Vol.535, p.168072, Article 168072
Hauptverfasser: Maspero, Federico, Cuccurullo, Simone, Mungpara, Dhavalkumar, Schwarz, Alexander, Bertacco, Riccardo
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container_start_page 168072
container_title Journal of magnetism and magnetic materials
container_volume 535
creator Maspero, Federico
Cuccurullo, Simone
Mungpara, Dhavalkumar
Schwarz, Alexander
Bertacco, Riccardo
description •Micromagnetic simulations can offer an accurate modelling of magnetic flux concentrators.•Magnetic domains become relevant in magnetic flux concentrators when scaling technology.•MuMax3 and COMSOL Multiphysics show comparable results for magnetic simulations. The impact of magnetic domains in magnetic flux concentrators is studied using the simulation software MuMax3. First, the simulation parameters are validated using experimental results from magnetic force microscopy; second the simulation output is benchmarked with the one obtained using Comsol Multiphysics. Finally, the impact of magnetic domain is assessed, showing how micromagnetic effects can become relevant, if not dominant, when scaling the gap between the MFC and the sensor.
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subjects Concentrators
Magnetic domains
Magnetic fields
Magnetic flux
Magnetism
MFC
MFM
MUMAX3
Simulation
title Impact of magnetic domains on magnetic flux concentrators
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