Figure 5.

Decay of total electrostatic potential (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$V_\text {XC}+V_\text {H}$$\end{document}) in two-dimensional samples in response to local geometric deformation i.e. displacement of a single atom, averaged on thin cylindrical shells of radius x centered at the position of the displaced atom. Thin lines show the decay trends, including Eq. (4) repeated from Fig. 3b, for comparison with the declining exponential behavior in corresponding bulks. The screening length is arbitrarily set to \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$r_s=4$$\end{document} Å.