Fig. 2
Chirality of the spin spiral. a Voltage dependency of the TMR (green curve—ΔUrms = 20 mV) and TAMR (red curve—ΔUrms = 10 mV). b, c bottom: dI/dU spin polarized map taken at U = −500 mV (b) and −400 mV (c) (I = 1 nA, ΔUrms = 40 mV, scale bar is 50 nm, tip spin polarization was at 47° away from the normal direction). Top: sketches of the magnetization and the corresponding dI/dU profiles perpendicular to the stripes due to TMR effect (green curve) and TAMR effect (red curve). d Experimental dI/dU profile plotted along the violet arrow in b and the green arrow in c. Red curves superimposed on the experimental profiles are fits assuming a contribution of TMR only for the top panel and a combination between TMR and TAMR for the bottom panel
