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Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
Research Interests
  • Molecular modeling and simulation, statistical thermodynamics, molecular physics

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On the freezing and structure of hard spheres under spherical confinement

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Title
On the freezing and structure of hard spheres under spherical confinement
Author
Huang, Huan CongYoon, Yong JinKwak, Sang Kyu
Keywords
Confined hard spheres; Freezing; Molecular dynamics; Phase transition; Spherical pore
Issue Date
201311
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR PHYSICS, v.111, no.21, pp.3283 - 3288
Abstract
The equation of state and the structure of hard spheres confined in spherical pores have been investigated via molecular dynamics for different pore radii ranging from 5.0 to 10.0 σ, where σ is the particle diameter. The hard boundary is chosen to capture the pure geometric effect of spherical confinement. A discontinuity in the equation of state was observed, indicating the onset of a freezing-like phase transition, which was similar to that of the bulk hard-sphere fluids. The behaviour of confined particles resembles that of the bulk with increase in the pore size, while its deviation from the bulk is found to be larger at the solid-like phase. For the pore radius below 5.0, FCC-like crystal clusters are not formed in spherically confined hard spheres.
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DOI
http://dx.doi.org/10.1080/00268976.2013.781694
ISSN
0026-8976
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