Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ballistic injection terahertz plasma instability in graphene n+-i-n-n+
  field-effect transistors and lateral diodes   We analyze the operation of the graphene n+-i-n-n+ field-effect transistors
(GFETs) and lateral diodes (GLDs) with the injection of ballistic electrons
into the n-region. The momentum transfer of the injected ballistic electrons
could lead to an effective Coulomb drag of the quasi-equilibrium electrons in
the n-region and
  the plasma instability in the GFETs and GLDs. The instability enables the
generation of terahertz radiation.
  The obtained results can be used for the optimization of the structures under
consideration for different devices, in particular, terahertz emitters.

6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org