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arXiv · 1806.07683

Large Scale Finite-Element Simulation of Micromagnetic Thermal Noise

Florian Bruckner·Massimiliano d'Aquino·Claudio Serpico·Claas Abert·Christoph Vogler·Dieter Suess
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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.

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Florian Bruckner, Massimiliano d'Aquino, Claudio Serpico, Claas Abert, Christoph Vogler, Dieter Suess. 2018-06-20. Large Scale Finite-Element Simulation of Micromagnetic Thermal Noise. https://doi.org/10.1016/j.jmmm.2018.11.106

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