Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temperature dependence of the conductivity of ballistic graphene   We investigate the temperature dependence of the conductivity in ballistic
graphene using Landauer transport theory. We obtain results which are
qualitatively in agreement with many features recently observed in transport
measurements on high mobility suspended graphene. The conductivity \sigma at
high temperature T and low density n grows linearly with T, while at high n we
find \sigma ~ |n|^1/2 with negative corrections at small T due to the
T-dependence of the chemical potential. At moderate densities the conductivity
is a non-monotonic function of T and n, exhibiting a minimum at T=0.693 \hbar v
|n|^1/2 where v is the Fermi velocity. We discuss two kinds of Fabry-Perot
oscillations in short nanoribbons and their stability at finite temperatures.

28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
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
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph