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Summary: Z .Physics of the Earth and Planetary Interiors 120 2000 145152
www.elsevier.comrlocaterpepi
First principles calculations on the diffusivity and viscosity of
liquid FeS at experimentally accessible conditions
Lidunka Vocadlo a,)
, Dario Alfe a
, Geoffrey D. Price a
, Michael J. Gillan b
`
a
Research School of Geological and Geophysical Sciences, Birkbeck College and UniÕersity College London, Gower Street, London,
WC1E 6BT, UK
b
Department of Physics and Astronomy, UniÕersity College London, Gower Street, London, WC1E 6BT, UK
Received 27 December 1999; received in revised form 13 March 2000; accepted 13 March 2000
Abstract
Ab initio molecular dynamics calculations, based upon density functional theory within the generalised gradient
Z .approximation GGA using ultrasoft non-norm conserving Vanderbilt pseudopotentials, have been used to predict the
transport properties of liquid FeS. In order to compare our simulations with experimental data, the simulations were
performed for the eutectic composition of FeS at the experimentally accessible conditions of 5 GPa and of 1300 and 1500
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