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3D continuum model of QDM—the reduction of criticalsize and nucleation barrier—As shown by a previous 2Dcontinuum model and 3D finite element analysis10,23, the key difference between heterogeneous nucleation of QDMs and homogeneous nucleation of QDs lies inislandpit and islandisland interactions Therefore, we willfirst formulate a heterogeneous nucleation theoryIf there are N atoms or molecules, the number of sites available is N Special sites in the material such as surfaces, internal interfaces, dislocations, etc can act to "catalyze" nucleation by effectively lowering ΔG c Although ΔGWhat conditions have to be met for each of these nucleations to take place ? Plot Of D G Versus R For Homogeneous Nucleation And An Example Of Download Scientific Diagram Difference between heterogeneous and homogeneous nucleation