Realizing Quantitative Quasiparticle Modeling of Skyrmion Dynamics in Arbitrary Potentials
Abstract
We demonstrate fully quantitative Thiele model simulations of magnetic skyrmion dynamics on previously unattainable experimentally relevant large length and time scales by ascertaining the key missing parameters needed to calibrate the experimental and simulation time scales and current-induced forces. Our work allows us to determine complete spatial pinning energy landscapes that enable quantification of experimental studies of diffusion in arbitrary potentials within the Lifson-Jackson framework. Our method enables us to ascertain the time scales, and by isolating the effect of ultra-low current density (order 106 A/m2) generated torques we directly infer the total force acting on the skyrmion for a quantitative modelling.
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