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MA: Fachverband Magnetismus

MA 11a: Focus Session: Skyrmionics: Future of Spintronics? (jointly with TT)

MA 11a.3: Hauptvortrag

Montag, 16. März 2015, 16:00–16:30, H 0104

Interface Induced Individual Skyrmions in Thin Films and Multilayers — K. Bouzehouane¹, V. Cros¹, C. Deranlot¹, •A. Fert¹, K. Garcia¹, C. Moreau-Luchaire¹, N. Reyren¹, J.-M. Sampaio^1,3, N. van Horne¹, M. Chshiev², Hongxin Yang², A. Thiaville³, S. Rohart⁴, C. Moutafis⁴, C.A.F. Vaz⁴, P. Warnicke⁴, J. Raabe⁴, and M. Weigand⁵ — ¹Unité Mixte de Physique CNRS/Thales, 1 Av. Fresnel, 9767 Palaiseau, France — ²Université de Grenoble, and SPINTEC (CNRS/CEA-INAC), 38054 Grenoble Cedex, France — ³Laboratoire de Physique des Solides, Université Paris-Sud, CNRS-UMR 8502, 91405 Orsay Cedex, France — ⁴Swiss Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland — ⁵Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569 Stuttgart, Germany

This talk is on individual skyrmions induced by interface Dzyaloshinskii-Moriya Interactions (DMI) in thin magnetic films or multilayers. I will present:

(1) Ab-initio calculations clearing up characteristic features of interface DMI: extension of the DMI away from the interface spins and thickness dependence, influence of the existence of proximity-induced magnetism in the spin-orbit layer, influence of interface roughness.

(2) Micromagnetic simulations of the nucleation and current-induced motion of skyrmions.

(3) Preliminary experimental results on (Ir/Co/Pt)x10 multilayers.