Abstract
A scheme for construction of the pair potential from non-empirical calculations of electronic structure of solids is suggested. As an example, parameters of Lennard-Jones potential are obtained for fcc Cs, based on LMTO calculations of energy parameters. Vacancy formation and migration energies for fcc Cs are calculated from this first-principles pair potential. In addition, the frequency of vibration and the jump probability of an atom are calculated and it is shown that they are direction dependent.
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Dorfman, S., Fuks, D. Parameters of self diffusion from non-empirical pair potential. Z. Physik B - Condensed Matter 91, 225–228 (1993). https://doi.org/10.1007/BF01315239
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DOI: https://doi.org/10.1007/BF01315239