Large Scale Finite-Element Simulation of Micromagnetic Thermal Noise
Florian Bruckner, Massimiliano d'Aquino, Claudio Serpico, Claas Abert,, Christoph Vogler, Dieter Suess
TL;DR
This paper introduces an efficient finite-element method to calculate ferromagnetic resonant modes, enabling accurate thermal noise spectral density predictions for complex magnetic structures, validated against time-domain simulations.
Contribution
It presents a novel finite-element approach for resonant mode calculation in magnetic structures, improving flexibility and accuracy for thermal noise analysis.
Findings
The method accurately predicts thermal noise spectra.
Validation against time-domain simulations confirms reliability.
Applicable to complex geometries and material variations.
Abstract
An efficient method for the calculation of ferromagnetic resonant modes of magnetic structures is presented. Finite-element discretization allows flexible geometries and location dependent material parameters. The resonant modes can be used for a semi-analytical calculation of the power spectral density of the thermal white-noise, which is relevant for many sensor applications. The proposed method is validated by comparing the noise spectrum of a nano-disk with time-domain simulations.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.