Regensburg 2019 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 16: Surface Magnetism (joint session O/MA)
MA 16.2: Vortrag
Dienstag, 2. April 2019, 10:45–11:00, H37
Investigation of Fe/Pt (110) magnetic structure by first-principles methods — •Vasily Tseplyaev, Jens Bröder, Markus Hoffmann, Daniel Wortmann, Bernd Zimmermann, and Stefan Blügel — Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany
While skyrmions - localized and topologically protected vortex-like magnetic textures - are the main focus within the current research field of chiral magnets, we have discussed in a recent work [1] the possible emergence of interface stabilized antiparticles, so-called antiskyrmions, magnetic textures with a topological charge and one-dimensional winding number opposite to the one of skyrmions. For instance, antiskyrmions can appear in ultrathin magnetic films grown on heavy metal substrates with C2v symmetry, if the electronic structure supports a Dzyaloshinskii spiralization tensor that fulfils additional conditions e.g. its determinant is smaller than zero. With the motivation to find interesting antiskyrmion systems we investigate magnetic systems with C2v interface symmetry, e.g. Fe/Pt(110), using relativistic and non-collinear first-principles theory implemented in the FLEUR code (www.flapw.de).
[1] M. Hoffmann et al., Nat. Commun. 8, 308 (2017)