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Papers Published

1. Pham, AT; Seto, R; Schönke, J; Joh, DY; Chilkoti, A; Fried, E; Yellen, BB, Crystallization kinetics of binary colloidal monolayers., Soft matter, vol. 12 no. 37 (October, 2016), pp. 7735-7746 [doi] .
   (last updated on 2024/07/16)

   Abstract:
   Experiments and simulations are used to study the kinetics of crystal growth in a mixture of magnetic and nonmagnetic particles suspended in ferrofluid. The growth process is quantified using both a bond order parameter and a mean domain size parameter. The largest single crystals obtained in experiments consist of approximately 1000 particles and form if the area fraction is held between 65-70% and the field strength is kept in the range of 8.5-10.5 Oe. Simulations indicate that much larger single crystals containing as many as 5000 particles can be obtained under impurity-free conditions within a few hours. If our simulations are modified to include impurity concentrations as small as 1-2%, then the results agree quantitatively with the experiments. These findings provide an important step toward developing strategies for growing single crystals that are large enough to enable follow-on investigations across many subdisciplines in condensed matter physics.