Fig. 2: Magnetic states of Fe/Rh1.
From: Nano-scale collinear multi-Q states driven by higher-order interactions
a Overview SP-STM image (partially differentiated constant-current data) of Fe/Rh/Ir(111). b, c Constant-current data without external magnetic field and with applied magnetic field of B = 5 T of fcc- and hcp-stacked Fe-ML/Rh1 islands as indicated in the overview image. d Constant-current images of the same hcp-Fe/Rh1 sample area without and with atomic resolution. e, f Sketches of possible magnetic states with the experimentally determined unit cells; for details on the construction of these magnetic states see methods section and for SP-STM simulations see Supplementary Figs. 1 and 2 (measurement parameters: a, b, c, U = +50 mV, I = 1 nA; d, U = +34 mV, I = 5.3 nA, B = −4 T; all: T = 4.2 K; Cr-bulk tip sensitive to out-of-plane sample magnetization components, as deduced from the observed magnetic contrast and symmetry considerations; the height range of the images is given in pm.).
