Figure 2
From: Atomic-scale mapping of dipole frustration at 90° charged domain walls in ferroelectric PbTiO3 films

Quantitative analysis of the structural and electric parameters of the 90° PCDW and 90° UCDW.
The structural and electric parameters were averaged along {110} (pseudo-cubic) to insure the statistical analysis is parallel to the DWs. (a)–(d) Lattice parameters, tetragonality, δTi and Ps extracted from the rhombus-highlighted area marked with ‘1’ in Fig. 1a. (e)–(h) Lattice parameters, tetragonality, δTi and Ps extracted from the rhombus-highlighted area marked with ‘2’ in Fig. 1a. The error bars show the standard deviation with respect to averaging along {110}PTO for each {110} atomic row. The inset in (f) shows the schematic definition of out-of-plane (δTiY) and in-plane (δTiX) components of the δTi, respectively.