Physical Review Letters · 1980 · 142 citations · 6 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsSolid State PhysicsThermodynamicsCondensed Matter SimulationsDisordered SystemsKinetics Of Phase TransformationsOrder-disorder TransformationsPhase TransitionsSolid-state Phase TransitionsAtomic Ordering KineticsDisorder TransitionsOrder TransitionsOrder-disorder Phase DiagramOrder-disorder Transformation KineticsOrdering KineticsStructure-function AnalysisTime Evolution Of States
Novel computer simulations are described of the time evolution of an ordering model binary alloy following quenching from a disordered state at a high temperature. The results are interpreted with use of ideas of Lifshitz and of Cahn and Allen; the ordering process is described by a kinetic equation for the motion of the walls separating domains with different orderings. The characteristic length increases as ${t}^{\frac{1}{2}}$, and the structure function scales as $k{t}^{\frac{1}{2}}$.
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