Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Graphene Thickness-Graded Transistors with Reduced Low-Frequency 1/f
  Noise   We demonstrate graphene thickness-graded transistors with high electron
mobility and low 1/f noise (f is a frequency). The device channel is
implemented with few-layer graphene with the thickness varied from a single
layer in the middle to few-layers at the source and drain contacts. It was
found that such devices have electron mobility comparable to the reference
single-layer graphene devices while producing lower noise levels. The metal
doping of graphene and difference in the electron density of states between the
single-layer and few-layer graphene cause the observed noise reduction. The
results shed light on the noise origin in graphene.

37
The categories of this paper are: supr-con
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
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci