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Diffusivity vs (negative) excess entropy for different density states of a binary Lennard-Jones alloy (Refs. 2 and 3). Excess entropy has been obtained from the semiempirical free energy expression reported in Ref. 3 and diffusivity has been extracted from Fig. 3 in Ref. 3. The inset shows the exponential dependence between excess entropy and the inverse product of temperature and configurational entropy, , the latter extracted from Fig. 2 in Ref. 2.
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