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 | Nanotech 2002 Vol. 2
Technical Proceedings of the 2002 International Conference on Computational Nanoscience and Nanotechnology
Chapter 8: Extended-Scale Atomistics |
| | Growth of Copper on Ag(100) at Experimental Deposition Rates Using TAD | | Authors: | J. Sprague, F. Montalenti and A.F. Voter | | Affilation: | Naval Research Laboratory, USA | | Pages: | 152 - 155 | | Keywords: | molecular dynamics, surface diffusion, thin films, copper, silver | | Abstract: | The initial stages of growth of (001) Cu films on (001) Ag substrates have been investigated using the temperature accelerated dynamics (TAD) method. The acceleration provided by this method made it possible to simulate the deposition of Cu on (001) Ag at 77 K using a deposition rate of 0.04 ML/s, which matched previously reported experiments of Egelhoff and Jacob. These simulations were achieved without a priori knowledge of the significant atomic processes. The present TAD simulation results showed that the increased lattice parameter in the film plane of the pseudomorphic Cu reduces the activation energy for the exchange mode of surface diffusion, allowing the formation of compact Cu islands at 77 K. Furthermore, the TAD simulation showed that the in-plane lattice expansion promoted some complex surface diffusion processes. |  | View paper | | ISBN: | 0-9708275-6-3 |
| Pages: | 504 |
| Hardcopy: | $100.00 |
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