2020/06/04 by Myoung-Woo Yoo, Francesca Mineo, Joo-Von Kim
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Amplitude #Characterization and Applications of Magnetic Nanoparticles #Deformation (meteorology) #Dynamics (music) #Geomagnetism and Paleomagnetism Studies #Inertial frame of reference #Inertial wave #Kinetic energy #Micro and Nano Robotics #Vortex #Work (physics) #cond-mat.mes-hall
paper · pdf · doi:10.1063/5.0039535
arxiv created 2020/06/04 · openalex created_date 2020/06/12 · openalex publication_date 2021/02/04 · arxiv updated 2021/02/24 · openalex updated_date 2026/08/05
We present an analytical model to account for the deformation-induced inertial dynamics of a magnetic vortex. The model is based on a deformation of the vortex core profile based on the Döring kinetic field, whereby the deformation amplitudes are promoted to dynamical variables in a collective-coordinate approach that provides a natural extension to the Thiele model. This extended model describes complex transients due to inertial effects and the variation of the effective mass with velocity. The model also provides a quantitative description of the inertial dynamics leading up to vortex core reversal, which is analogous to the Walker transition in domain wall dynamics. Our work paves the way for a standard prescription for describing the inertial effects of topological magnetic solitons.