Extended Data Fig. 2: Characterization of domain walls.
From: Pair density wave state in a monolayer high-Tc iron-based superconductor
a, b, STM images (16×16 nm2, Vs = 0.1 V, Is = 0.5 nA) of two domain walls labeled as D1 (a) and D4 (b). c, d, dI/dV maps of two domain walls. The lattice vectors qi,x(y) of two regions marked by white spots in a and b satisfy q1,x(y) = q2,x(y). dI/dV maps shown in c and d are measured at the red dashed box in a and b, respectively.
