Chaplot et al. (1998) purport to simulate MgSiO3-perovskite melting. Instead, the paper contains simulations of a thermal instability.

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One can define thermal instability of a crystal lattice as a mechanical instability induced by temperature. The temperature of thermal instability can be found by gradual increase of temperature until the sudden change of properties appears. This is exactly what was performed by Chaplot et al. The temperatures of thermal instability of the ideal lattice were high compare to experimental. Recognizing the possibility of overheating, Chaplot et al. carried out simulations to determine temperatures of thermal instability of the lattice...

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