Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orientational ordering of closely packed Janus particles   We study orientational ordering of $2$-dimensional closely packed Janus
particles by extensive Monte Carlo simulations. For smaller patch sizes the
system remains in the plastic crystal phase where the rotational degrees of
freedom are disordered down to the lowest temperatures. There the liquid
consist of dimers and trimers of the attractive patches. For large enough patch
sizes, the system exhibits a thermodynamic transition into a phase with stripe
patterns of the patches breaking the three-fold rotational symmetry. Our
results strongly suggests that the latter is a 2nd order phase transition whose
universality is the same as that of the $3$-state Potts model in
$2$-dimensions. Furthermore we analyzed the relaxation dynamics of the system
performing quenching simulations into the stripe phase. We found growing
domains of the stripes. The relaxation of key dynamical quantities follow
universal scaling features in terms of the domain size.

25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th