|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Computational Materials Discovery and Optimization: From 2D to Bulk Materials
||Monte Carlo Simulation of Two-phase Film Growth on a Patterned Substrate
||Xiao Lu, Boya Lai, David Laughlin, Jian-Gang Zhu, Jingxi Zhu
|On-Site Speaker (Planned)
The influence of a patterned substrate on the growth of a two phase (CoPt/SiO2, the media of perpendicular magnetic recording) thin film is investigated using a Potts Model Monte Carlo simulation. The model considers interfacial energy between phases and incorporates constraints, including surface diffusion, initial island formation and the healing effect, into the conventional Potts model. The results showed that the growth of the CoPt grains are confined to the dome regions whereas the grain boundaries lay in the gaps between domes and were filled with secondary phase, SiO2. Dome shape, initial state of the film and concentration of SiO2 were studied with respect to their influence on the final grain size and size distribution. A comparison between the simulation results and experimental results was also given. Patterned substrates were shown to improve the grain size distribution of CoPt grains which is beneficial to recording performance.
||Planned: A print-only volume