Influences of cooling rate on formation of amorphous germanene

NH Giang and VV Hoang, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 126, 114492 (2021).

DOI: 10.1016/j.physe.2020.114492

In this work, we study thoroughly influences of cooling rate on the formation of two-dimensional (2D) germanene via molecular dynamics simulation using atomistic models composed of 10(4) atomic Ge atoms with the Stillinger - Weber potential. This influence is studied through the changes in the thermodynamic and structural properties of the model. We find that the relatively good quality amorphous germanene is formed at a cooling rate of 10(13) K s(-1) with the glass transition temperature of 1210 K. The structural properties of 2D amorphous germanene are discussed through radial distribution function, coordination number, ring, interatomic-distance, and angle distribution.

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