Figure 4. Chirality-driven orbital moments in skyrmions of different sizes (Nsk=−1).
(a,b) Emergent magnetic flux per site, Bsk (equation (2)), for the skyrmion profiles characterized by Rsk=1.9 nm and Rsk=0.8 nm, corresponding to applied magnetic fields of B=1.1 T and B=2.7 T, respectively. (c,d) Orbital moment per site in μB, morb, generated by the respective emergent magnetic fluxes shown in a,b, without SOC, computed using the tight-binding model for Pd/Fe/Ir(111).