Simulation results on domain wall pinning. a Demagnetization curves with the red and green lines corresponding to samples 1 and 2, respectively. The magnetization reversal process of b sample 1 and c sample 2 at different values of applied external magnetic field marked in a. m c denotes the magnetization component along the easy axis. P1 and P2 show typical pinning sites, where 1:5 phase intersects with the Z-phase. P1′ and P2′ denote typical sites containing only the Z-phase. The yellow arrows denote the positions