An ab-initio paradigm for exploring the stability of skyrmions*

Magnetic skyrmions are topological defects in the magnetization texture. The typical sizes of skyrmions are small with diameters in the nanometer range. They behave as particles that can be created, moved, and annihilated. Topological properties strongly influence the stability and dynamics of skyrmions. Long living stable skyrmions are potential candidates for spintronic materials. Skyrmions are stabilized by Dzyaloshinskii–Moriya or asymmetric exchange interactions. Certain class of deformations and disorder influence the Dzyaloshinskii–Moriya interactions and hence the stability and dynamics of skyrmions. In this talk, we will present a multiscale paradigm to simulate skyrmions from first-principles calculations. We will talk about the role of disorder and lattice strains on the stability and dynamics of skyrmions.