Abstract
This work presents the effect of pressure on the local microstructure of amorphous Germania (GeO2). The Molecular Dynamics simulation was performed on systems at 900 K and high pressure up to 70 GPa. The structural properties have been analyzed through the pair correlation function, coordination number distribution, and structure factors. The structural phase transition process starts occurring at 30 GPa. At above 30 GPa, the degree of structural order increases and the intermediate-range order structure depends strongly on pressure. Correlation between the peaks in the plot of structure factor and the topology of basic structural units GeOn(n = 4-6) is also discussed in detail in this paper.
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