Soumyaranjan Dash

1 Introduction Topological nanoscale spin-textures are attracting widespread interest for spintronic memory and logic technologies because of their high-density data storage, energy-efficient operation, and potential for unconventional computation [1-3]. Magnetic skyrmions, in particular, combine chiral, particle-like spin-configurations with topological protection, making them promising candidates for next-generation devices [4-6].

Motivated by the observation of Skyrmion-like magnetic textures in two-dimensional (2D) itinerant ferromagnets FenGeTe2 (n≥3), we develop a microscopic model combining itinerant magnetism and spin-orbit coupling on a triangular lattice. The ground state of the model in the absence of magnetic field consists of filamentary magnetic domain walls revealing a striking similarity with our magnetic force microscopy experiments on Fe3GeTe2.