Figure 3. Two-body excess entropy S2 of liquid Si as function of pressure for different temperatures from 1032 to 1800 K obtained from the pair correlation function.
S2 decreases anomalously with decreasing pressure after going through a maximum, for temperature ranging from 1032 to 1432 K. Inset: The Rosenfeld reduced diffusion coefficient D* against S2 for different isotherms. The relation between ln(DR*) and S2 is not linear, showing a different behaviour from that of Rosenfeld and Dzugutov.