Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monte Carlo simulation of defects in hard-sphere crystal grown on a
  square pattern   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.

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The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc