2017/05/31 by A. Yagil, A. Almoalem, Anjan Soumyanarayanan +4 · 1 citation
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Demagnetizing field #Field (mathematics) #Magnetic field #Magnetic force microscope #Magnetic properties of thin films #Multipole expansion #Nanoscopic scale #Skyrmion #Spintronics #Theoretical and Computational Physics #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.str-el #physics.app-ph
paper · pdf · doi:10.1063/1.5027602
published as Appl. Phys. Lett. 112.19 (2018): 192403 · 6 pages, 4 figures, significantly revised and upgraded. For the updated supplementary material please contact one of the corresponding authors
openalex created_date 2017/06/05 · arxiv created 2018/03/23 · openalex publication_date 2018/05/07 · arxiv updated 2018/06/05 · openalex updated_date 2026/08/05
Skyrmions are nanoscale spin configurations with topological properties that hold great promise for spintronic devices. Here, we establish their Néel texture, helicity, and size in Ir/Fe/Co/Pt multilayer films by constructing a multipole expansion to model their stray field signatures and applying it to magnetic force microscopy images. Furthermore, the demonstrated sensitivity to inhomogeneity in skyrmion properties, coupled with a unique capability to estimate the pinning force governing dynamics, portend broad applicability in the burgeoning field of topological spin textures.