Unraveling the role of dipolar vs. Dzyaloshinskii-Moriya interaction in stabilizing compact magnetic skyrmions
Bernand-Mantel, A.; Muratov, C.B.; Simon, T.M.
Research article (journal) | Peer reviewedAbstract
We present a theoretical study of compact magnetic skyrmions in ferromagnetic films with perpendicular magnetic anisotropy that accounts for the full stray field energy in the thin film and low interfacial Dzyaloshinskii-Moriya interaction (DMI) regime. In this regime, the skyrmion profile is close to a Belavin-Polyakov profile, which yields analytical expressions for the equilibrium skyrmion radius and energy. The obtained formulas provide a clear identification of DMI and long-range dipolar interaction as two physical mechanisms determining skyrmion size and stability.
Details about the publication
Journal: Physical Review B
Volume: 101
Issue: 4
Article number: 045416
Status: Published
Release year: 2020
Language in which the publication is written: English
Keywords: Dzyaloshinskii-Moriya interaction; Micromagnetism; Skyrmions; Ferromagnets;Thin films; Micromagnetic modeling
Authors from the University of Münster
| Simon, Theresa |
Talks on the publication
| Skyrmions and stability of degree 1 harmonic maps from the plane to the two-dimensional sphere Simon, Theresa (05/10/2021) CNA Seminar, Carnegie Mellon University, Pittsburgh, USA Type of talk: scientific Talk | |
| Skyrmions and stability of degree 1 harmonic maps from the plane to the two-dimensional sphere Simon, Theresa (22/09/2021) Young Women in PDEs and Applications, Rheinische Friedrich-Wilhelms-Universtität Bonn, Bonn, Deutschland Type of talk: scientific Talk | |
| Skyrmions and stability of degree 1 harmonic maps from the plane to the two-dimensional sphere Simon, Theresa (13/07/2021) HCM Workshop: Geometric and Applied Analysis, Rheinische Friedrich-Wilhelms-Universtität Bonn, Bonn, Deutschland Type of talk: scientific Talk | |
| Skyrmions and stability of degree 1 harmonic maps from the plane to the two-dimensional sphere Simon, Theresa (26/05/2021) SIAM Conference on Mathematical Aspects of Materials Science, Basque Center for Applied Mathematics, Bilbao, Spain Type of talk: scientific Talk | |
| Skyrmions and stability of degree ±1 harmonic maps from the plane to the two-dimensional sphere Simon, Theresa (27/02/2020) Arbeitsgemeinschaft Angewandte Analysis, Max-Planck-Institut für Mathematik in den Naturwissenschaften, Leipzig, Deutschland Type of talk: scientific Talk |