Monte Carlo simulation of defects in hard-sphere crystal grown on a square pattern

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公開日
2012-02-03
権利情報
  • https://www.emerald.com/insight/site-policies
DOI
  • 10.1260/1708-5284.9.1.37
  • 10.48550/arxiv.1201.4488
公開者
Emerald

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説明

<jats:p>Monte Carlo simulations of hard-sphere (HS) crystal grown on a square patterned wall under gravity have been performed. While previous simulations were performed with step-wise controlled gravity, in the present simulations constant gravity has been applied from the first. In the case in which a flat wall is used as the bottom wall, if a large gravity is suddenly applied, the system does polycrystallize. On the other hand, in the present simulations, despite the sudden application of gravity, the system has not polycrystallize. Crystalline nucleation on the square pattern and successive crystal growth upward are suggested to overcome the homogeneous nucleation inside and result in. Defect disappearance, which has been essentially the same as that for the case with step-wise controlled gravity, has also observed for the present case. The characteristic of the square patterned bottom wall simulation with a large horizontal system size has been existence of triangular defects suggesting stacking tetrahedra.</jats:p>

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