We report a theoretical investigation of a charged 180∘ domain wall in ferroelectric PbTiO3, compensated by randomly distributed immobile charge defects. For this we utilize atomistic shell-model simulations and continuous phase-field simulations in the framework of the Ginzburg-Landau-Devonshire model. We predict that domain walls form a zig-zag pattern and we discuss its properties in a broad interval of compensation-region widths, ranging from a couple to over a hundred nanometers.
@article{arxiv.2211.04828,
title = {Zig-zag charged domain walls in ferroelectric PbTiO$_3$},
author = {Pavel Marton and Mauro A. P. Gonçalves and Marek Paściak and Sabine Körbel and Věnceslav Chumchal and Martin Plešinger and Antonín Klíč and Jirka Hlinka},
journal= {arXiv preprint arXiv:2211.04828},
year = {2023}
}