Affiliation:
1. Thu Dau Mot University
Abstract
The structure of the two-dimensional BN containing 9941 atoms has been studied by classical molecular dynamics simulation with Tersoff potential. The periodic boundary condition is applied to the two x and y directions, while the z direction is free. The analysis results of the function of total energy per atom and heat capacity, mean squared displacement, diffusion coefficient, radial distribution function, distribution of coordination number, angle distribution, and ring statistics show that the melting point of the material is about 4600 K. This value is higher than the experimental value as well as the previous simulation results. The observations also show that the melting process begins at the corners and edges and then spreads across the face of the model. The breakage of the B-N bond leads to the formation of clusters of N2 molecules and B with different sizes.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference25 articles.
1. Graphene and other two-dimensional materials;Novoselov;Frontiers of Physics,2019
2. Chang, Cheng, Wei Chen, Ye Chen, Yonghua Chen, Yu Chen, Feng Ding, Chunhai Fan et al, Recent progress on two-dimensional materials, Acta Phys.-Chim. Sin 37, No. 12 (2021): 2108017.
3. Geim, Andre K., and Konstantin S. Novoselov, The rise of graphene, Nature materials 6, No. 3 (2007): 183-191.
4. Ultrathin Two-Dimensional Nanomaterials;Zhang;ACS Nano,2015
5. Recent Advances in Two-Dimensional Materials beyond Graphene;Bhimanapati;ACS Nano,2015