Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thickness monitoring of graphene on SiC using low-energy electron
  diffraction   The formation of epitaxial graphene on SiC is monitored in-situ using
low-energy electron diffraction (LEED). The possibility of using LEED as an
in-situ thickness monitor of the graphene is examined. The ratio of primary
diffraction spot intensities for graphene compared to SiC is measured for a
series of samples of known graphene thickness (determined using low-energy
electron microscopy). It is found that this ratio is effective for determining
graphene thicknesses in the range 1 to 3 monolayers. Effects of a distribution
of graphene thicknesses on this method of thickness determination are
considered.

34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph