Large Scale Finite-Element Simulation of Micromagnetic Thermal Noise
arXiv:1806.07683 · doi:10.1016/j.jmmm.2018.11.106
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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- Finite-element dynamic-matrix approach for spin-wave dispersions in magnonic waveguides with arbitrary cross section
- Numerical reverse engineering of general spin-wave dispersions: Bridge between numerics and analytics using a dynamic-matrix approach