Crystallization kinetics of binary colloidal monolayers.

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Pham, AT; Seto, R; Schönke, J; Joh, DY; Chilkoti, A; Fried, E; Yellen, BB

Published Date

  • October 2016

Published In

Volume / Issue

  • 12 / 37

Start / End Page

  • 7735 - 7746

PubMed ID

  • 27477956

Electronic International Standard Serial Number (EISSN)

  • 1744-6848

International Standard Serial Number (ISSN)

  • 1744-683X

Digital Object Identifier (DOI)

  • 10.1039/c6sm01072e

Language

  • eng