Learning magnetization dynamics

[摘要] Deep neural networks are used to model the magnetization dynamics in magnetic thin film elements. The magnetic states of a thin film element can be represented in a low dimensional space. With convolutional autoencoders a compression ratio of 1024:1 was achieved. Time integration can be performed in the latent space with a second network which was trained by solutions of the Landau-Lifshitz-Gilbert equation. Thus the magnetic response to an external field can be computed quickly.

[发布日期] 2019-12-01

[关键词] Micromagnetics;Magnetic sensors;Machine learning;Model order reduction