Molecular dynamics study of ion transport in CaF2(10 mol % LaF3) |
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| Authors: | P. E. Ngoepe C. R. A. Catlow+ |
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| Affiliation: | 1. Department of Physics , University of the North , Sovenga 0727, South Africa;2. +Davy-Faraday Research Laboratories , The Royal Institution , Albemarle Street, London W1X 4BS, United Kingdom |
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| Abstract: | Abstract We present the results of a molecular dynamics study of CaF2(10 mol % LaF3). No diffusion of fluorine ions is observed in pure CaF2 below the transition temperature (TC ≈ 1460K) to the fast-ion phase. However, doping with La3+ ions promotes fluorine ion diffusion in this temperature range, and tends to suppress it above TC. Various ion migration mechanisms are discussed. |
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| Keywords: | channeling ion implantation two dimensional profiles |
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