Pressure-induced Glassy Networks of Enstatite (MgSiO3) and Forsterite (Mg2SiO4)

Abstract

This work is designed to focus on the glassy network analysis and visualizing the cluster and subnets formation, the rich set of bond-, edge- and face-sharing linkages. The correlation between the degree of polymerization and linkages forming is apparently indicated. The distribution of SiOx clusters is computed to determine the polymerization characteristic and Mg-rich region. The distribution of BOs, NBOs and FOs also are investigated to prove the behavior of Mg2+ incorporating into the -Si-O- network. Polyhedral units, clusters, and subnets are vividly visualized so as to have a better understanding of cluster merging. Besides, in this work we have also clarified the distribution of edge-sharing and face-sharing subnets/network between Si-Si and Mg-Si species.