Fig. 4: Polar features in IP-CAPBs.
From: In-plane charged antiphase boundary and 180° ___domain wall in a ferroelectric film
Atomic-resolution HAADF images are false-color coded for the easy distinguishment of a type-I and b type-II CAPBs and the boundaries are marked by white dashed frames. The projected polarization of each u.c. is derived through the displacement components of B-site columns away from the center of corresponding Bi rectangle, ΔB, along <001> and <100> directions on the right panels. Atomic column shifts pointing to the top in [001] or to the right in [100] directions are defined as positive values, and vice versa. The red arrows indicate the antiphase interfaces in the images and the corresponding polarization maps.
