Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electronic properties of phosphorene and graphene nanoribbons with edge
  vacancies in magnetic field   The graphene and phosphorene nanostructures have a big potential application
in a large area of actuals research in physics. However, their methods of
synthesis still do not allow the production of perfect materials with an intact
molecular structure. In this paper, the occurrence of atomic vacancies was
considered in the edge structure of the zigzag phosphorene and graphene
nanoribbons. For different concentrations of these edge vacancies, their
influence on the metallic properties was investigated. The calculations were
performed for different sizes of the unit cell. Furthermore, for a smaller
size, the influence of a uniform magnetic field was added.

12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
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