Fig. 3: The magnetization and domain evolution based on experiments and simulations in Gd15+x(Fe94Co6)85−x (x = 0.2).
From: Field-free topological behavior in the magnetic domain wall of ferrimagnetic GdFeCo
a The dependence of magnetic parameters on temperature extracted from experimental results. b The domain phase diagram in terms of varying Ms and Ku for a fixed A = 7 × 10−12 J/m with experimental data points marked in red. Color map represents the skyrmion number and delineates the boundary between different magnetic phase regions, indicating the continuous transformation between meron pair and skyrmions but the abrupt transition from skyrmion to stripe domains. c The simulated magnetization states for different parameters. The highlight images reflect the experimental transformation at different temperatures. The out-of-plane magnetization is represented by regions in red (+mz) and blue (−mz), whereas the in-plane magnetization is represented by white regions with black arrows.
