Extended Data Fig. 4: Characterization of a centre-convergent type nanodomain.
From: High-density switchable skyrmion-like polar nanodomains integrated on silicon
a, Polarization mapping by 4D-STEM. b, The projected electric field calculated from the (000) diffraction peak. c, The projected charge density calculated from the electric field based on Gauss’s law. Scale bar, 5 nm. d, Atomically resolved plane-view HADDF-STEM image of the PTO20/STO10 bilayer. Scale bar, 2 nm. e, The PACBED pattern extracted from the region of the centre-convergent domain shown in a–c.
