Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Graphene on hexagonal lattice substrate: Stress and Pseudo-magnetic
  field   Moir'e patterns in the pseudo-magnetic field and in the strain profile of
graphene (GE) when put on top of a hexagonal lattice substrate are predicted
from elasticity theory. %which are confirmed by atomistic simulations. The van
der Waals (vdW) interaction between GE and the substrate induces out-of-plane
deformations in graphene which results in a strain field, and consequently in a
pseudo-magnetic field. When the misorientation angle is about 0.5 deg. a
three-fold symmetric strain field is realized that results in a pseudo-magnetic
field very similar to the one proposed by F. Guinea, M. I. Katsnelson, and A.
K. Geim [Nat. Phys. 6, 30 (2010)]. Our results show that the periodicity and
length of the pseudo-magnetic field can be tuned in GE by changing the
misorientation angle and substrate adhesion parameters and a considerable
energy gap (23 meV) can be obtained due to out-of-plane deformation of graphene
which is in the range of recent experimental measurements (20-30 meV).

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The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat