Extended Data Fig. 3: Adapting dI/dV contrast from atomistic spin simulations to experimental dI/dV maps.
From: Experimental identification of two distinct skyrmion collapse mechanisms
a-d, Measured dI/dV maps of skyrmion A (Fig. 6a) at the B fields marked on top (same as Fig. 3a-d). Large (small) circles enclose the skyrmion area (hot spot of collapse rate) with dot as circle center. Arrows mark directions of profile lines in (m)-(p). e-h, Calculated dI/dV maps consisting of overlapping contributions of NCMR and tunneling magnetoresistance using the spin configurations of (i)-(l) (methods). Circles and arrows are identical to the images on top. i-l, Atomic magnetization vectors mi (arrows) with color marking \({m}_{i}^{z}\) as calculated by the atomistic spin model. Circles are identical to the larger circles of the upper images in the same column. (e)-(l) B⊥, B∥ as marked above (e)-(h). m-p, Profile lines through measured (black) and simulated (dotted blue) dI/dV images at the positions marked by arrows in (a)-(h) (same curves are shown in Fig. 3i-l).
