Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crystallization of Simple Fluids: Relative Stability of f.c.c. and b.c.c
  Structures   A free-energy functional for a crystal that contains both the symmetry
conserved and symmetry broken parts of the direct pair correlation function is
developed. The free-energy functional is used to investigate the
crystallization of fluids interacting via the inverse power potential ;
$u(r)=\epsilon {(\sigma/r)}^n$. In agreement with simulation results we find
that for $n=12$ the freezing is into close packed f.c.c structure while for
soft repulsions $(n\leq 6)$ b.c.c phase is more stable.

20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs