Fig. 1
From: Isolated zero field sub-10 nm skyrmions in ultrathin Co films
STM measurement of Rh/Co/Ir(111) in the magnetic virgin state. Perspective view of STM topography colourized with a simultaneously measured spin-resolved dl/dU map of 0.4 atomic layers of Rh deposited on 0.5 atomic layers of Co on Ir(111). The front cross-section has been sketched and labeled for clarity. Co (indicated by white arrows) grows as stripes form the Ir(111) step edges. Rh covers some of the exposed Ir(111) surface. The stacking of the Rh on the Co monolayer is indicated by the color of the arrows. The directions of the arrows indicate the local magnetization direction. The two black rectangles mark the zoom-ins shown in Fig. 2. (U = −250 mV, I = 800 pA, B = 0 T, T = 4.2 K), Cr bulk tip, fast scan axis is horizontal)
