Fig. 1: Sample structure and magnetic properties.
From: Room-temperature creation and conversion of individual skyrmion bags in magnetic multilayered disks
a Schematic of the ferromagnetic disk configuration. b 3D AFM image of the 1.1 μm disk array. c STEM image of the cross-section of a d = 1.1 μm disk. d Normalized OOP (blue) and IP (red) magnetic hysteresis loops of the continuous multilayer. e IP wave vector k dependence of the frequency difference ∆f with the error bar obtained from the standard error of Lorentzian fitting. The solid line indicates a linear fitting, used to determine the strength of i-DMI.
