Research Article

Multilevel Tunnelling Systems and Fractal Clustering in the Low-Temperature Mixed Alkali-Silicate Glasses

Figure 2

(Color online) Molecular dynamics snapshot of the structure of sodium trisilicate at 2100 K at the density g  . The big blue spheres that are connected to each other represent the Na atoms. The Si–O network is drawn by yellow (Si) and red (O) spheres that are connected to each other by covalent bonds shown as sticks between Si and O spheres (from [5], by permission).
263742.fig.002