Abstract
Temperature data from optical intensity measurements through anvils at high shock pressures are reported for magnesium samples. When account is taken for imperfect gaps at the anvil interface, the temperature measurements are shown to determine the melting line of magnesium at pressures from 40 to 50 GPa (400 to 500 kbar). The resulting high-pressure melting line for magnesium is in good agreement with the Lindemann law, with reasonable high pressure values for the Grüneisen coefficient γG.
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