Fig. 1: Single skyrmion in a 100-nm-wide FeGe nanostripe.
From: Steady motion of 80-nm-size skyrmions in a 100-nm-wide track
a Schematic illustration of the FeGe microdevice. The left and right pads represent the Pt electrodes connected to the source of nano-second current pulse through the Au wires in the Si3N4/Si film. The electron beam is along z direction. The single chain skyrmions are hosted in an ultrathin FeGe track. b Low magnification high-angle annular dark-field (HAADF) image of an FeGe nanostripe with a length of ~ 10 μm and a width of ~ 100 nm. The schematic illustrates that the upper and lower sides of the FeGe nanostripe are protected by carbon layers. c Lorentz TEM image of a single skyrmion in the nanostripe at a defocus value of 600 μm in the presence of a magnetic field of 234 mT.
