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

Abstract

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.

7 pages; 19th Annual International Conference on Composite/Nano Engineering; World Journal of Engineering, in press

References in corpus (1)

• Monte Carlo simulation of growth of hard-sphere crystals on a square pattern

Cited by in corpus (3)

• Possibility of Gravitational Tempering in Colloidal Epitaxy to Obtain a Perfect Crystal
• Gravitational tempering in colloidal epitaxy to reduce defects further
• Identification of triangular-shaped defects often appeared in hard-sphere crystals grown on a square pattern under gravity by Monte Carlo simulations