Figure 1

(a–c) The structural features of the TBMD, biased TBMD and WWW models of a-Si respectively. Mis-coordinated atoms and their bonds are visualized in red and normally coordinated atoms are in blue. Cutoff radius of 2.8 Å was used to define a bond for all three models. (d–f) Radial distribution function (RDF) of these models are plotted in the same order.