Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of external conditions on the structure of scrolled graphene
  edges   Characteristic dimensions of carbon nanoscrolls - "buckyrolls" - are
calculated by analyzing the competition between elastic, van der Waals, and
electrostatic energies for representative models of suspended and
substrate-deposited graphene samples. The results are consistent with both
atomistic simulations and experimental observations of scrolled graphene edges.
Electrostatic control of the wrapping is shown to be practically feasible and
its possible device applications are indicated.

31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom