Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of biaxial strain and local constant potential on electronic
  structure of monolayer SnSe   We use the modified Becke-Johnson exchange potential (mBJ) with the
spin-orbit coupling effect (SOC) to study effects of biaxial strain and local
constant potential on electronic structure of monolayer SnSe. Our results show
the fundamental band gap size can be tuned via biaxial strain. Compressive
strain (tensile strain) can narrow (enlarge) band gap, and compressive strain
causes the transition from quasi-direct to indirect band gap. Moreover,
considering that any tuning of electronic structure is realized by changing the
periodic potential distribution in the crystalline, we directly add constant
potential (CP) to muffin-tin spheres. The results demonstrate that positive and
negative CPs can narrow and enlarge band gap, respectively. At CP of 0.9 Ry,
semiconductor-metal transition appears, and interestingly a new type of nearly
linear dispersions occur at band edge. Our work is good for inspiring more
experimental and further theoretical research works.

22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int