Equations of state of close-packed phases of iron and their implications for the Earth's core

Details Equations of state of close-packed phases of iron and their implications for the Earth's core Equations of state of close-packed phases of iron and their implications for the Earth's core

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pepi...18...13m&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 18, Issue 1, p. 13-19.

Physics

2

Scientific paper

Theoretical equations of state for Fe at high pressures and temperatures are derived from the expression of the free energy written as a sum of the static energy, the harmonic, the anharmonic and the electronic contributions. All the calculations have been performed for the various crystal structures of Fe using different intermolecular potentials, and namely: Lennard-Jones, Morse and Rydberg functions. The available experimental data do not allow a definite choice between them thus leaving open the problem of the composition of the earth's core.

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