Real-space observation of individual skyrmions in helimagnetic nanostripes
Jin Chi-Minga),b),c), Du Hai-Feng†a),b)
       
Variations of spin texture with magnetic field in 282-nm FeGe nanostripe at T = 100 K. (a) and (b) Schematic and real diagram of FeGe nanostripe. (c) Magnetic-field dependence of the spin texture, represented by the lateral magnetization distribution obtained by TIE analysis of the Lorentz data. The closed white curve in panel b = 0 kOe panel represents the lateral magnetization direction. Magnetic fields were applied normal to the stripe plane. The color wheel represents the magnetization direction at every point. (d) Enlargement of the region marked by the dotted white rectangle in corresponding panels (c). The small white arrows stand for the in-plane magnetization direction at each point. U and D stand for the up and down-spins regions, respectively. The thick white arrows are plotted to guide the eyes. The unit 1 Oe = 79.5775 A· m−1.