Bloch-type magnetic skyrmions are nanoscale vortex-like spin objects that form densely
packed lattice arrangements in B20-type chiral magnets in the presence of a magnetic field.
Here, we use off-axis electron holography, in combination with an iterative model-based
reconstruction algorithm, to study the geometries of the projected in-plane magnetization
distributions of individual skyrmions in an FeGe thin film as a function of applied magnetic
field. We compare our results with micromagnetic simulations and find a departure from …