Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Graphene Field Effect Transistors: Diffusion-Drift Theory   Based on explicit solution of current continuity equation in the graphene
FET's channel the semi-classical diffusion-drift description of the carrier
transport and I-V characteristics model has been developed. Role of
rechargeable defects (interface traps) near or at the interface between
graphene and insulated layers has also described.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th