2023/08/05 by Eugene M. Chudnovsky, Chudnovsky, Eugene M.
Engineering · Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Metallic Glasses and Amorphous Alloys #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.2308.02826
openalex publication_date 2023/08/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Contraction and expansion of skyrmions in ferromagnetic films are investigated. In centrosymmetric systems, the dynamics of a collapsing skyrmion is driven by dissipation. The collapse time has a minimum on the damping constant. In systems with broken inversion symmetry, the evolution of skyrmions toward equilibrium size is driven by the Dzyaloshinskii-Moriya interaction. Expressions describing the time dependence of the skyrmion size are derived and their implications for skyrmion-based information processing are discussed.