Theoretical Study of Spinodal Disordering and Disordering Relaxation
By employing Cluster Variation and Path Probability Methods, disordering relaxation kinetics of L10 ordered phase at 1:1 stoichiometric composition is studied. The instability temperature above the order-disorder transition temperature is termed spinodal disordering temperature at which the susceptibility is confirmed to diverge. The temperature dependence of the relaxation time behaves not monotonically but increases towards the spinodal disordering temperature. This is believed to be the pseudo-critical slowing down phenomenon reported for the first-order transition.
KeywordsPath Variable Cluster Probability Path Probability Range Order Parameter Pair Interaction Energy
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