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Spontaneous skyrmion chains in nanorods with chiral interactions

Research paper by Michalis Charilaou, Jörg F. Löffler

Indexed on: 06 Apr '16Published on: 06 Apr '16Published in: Physics - Mesoscopic Systems and Quantum Hall Effect



Abstract

We report that in cylindrical nanorods skyrmion chains, i.e., three-dimensional spin textures, emerge dynamically, as revealed by micromagnetic simulations. The skyrmion-chain state occurs when the diameter of the rod is larger than the helical pitch length of the material, and the number of skyrmions on the chain is proportional to the length of the nanorod. This finding provides a deeper understanding of the interplay between geometry and skyrmionic symmetry, and shows how spatial confinement can stabilize spontaneous topological spin textures.