Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AFM local oxidation nanolithography of graphene   We demonstrate the local oxidation nanopatterning of graphene films by an
atomic force microscope. The technique provides a method to form insulating
trenches in graphene flakes and to fabricate nanodevices with sub-nm precision.
We demonstrate fabrication of a 25-nm-wide nanoribbon and sub-micron size
nanoring from a graphene flake. We also found that we can write either trenches
or bumps on the graphene surface depending on the lithography conditions. We
attribute the bumps to partial oxidation of the surface and incorporation of
oxygen into the graphene lattice.

24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
2
The categories of this paper are: math