Publication Date:
2013-03-15
Description:
The latent ion track in α-quartz is studied by molecular dynamics simulations. The latent track is created by depositing electron energies into a cylindrical region with a radius of 3 nm. In this study, the electron stopping power varies from 3.0 keV/nm to 12.0 keV/nm, and a continuous latent track is observed for all the simulated values of electron stopping power except 3.0 keV/nm. The simulation results indicate that the threshold electron stopping power for a continous latent track lies between 3.0 keV/nm and 3.7 keV/nm. In addition, the coordination defects produced in the latent track are analyzed for all the simulation conditions, and the results show that the latent track in α-quartz consists of an O-rich amorphous phase and Si-rich point defects. At the end of this paper, the influence of the energy deposition model on the latent track in α-quartz is investigated. The results indicate that different energy deposition models reveal similar latent track properties. Howeve...
Print ISSN:
1674-1137
Topics:
Physics
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