Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Novel Two-dimensional SiC2 Sheet with Full Pentagon Network   We propose a promising two-dimensional nano-sheet of SiC2 (SiC2-pentagon)
consisting of tetrahedral silicon atoms and triple-linked carbon atoms in a
fully-pentagon network. The SiC2-pentagon with buckled configuration is more
favorable than its planar counterpart and previously proposed SiC2-silagraphene
with tetra-coordinate silicon atoms; and its dynamical stability is confirmed
through phonon analyzing. Buckled SiC2-pentagon is an indirect-band-gap
semiconductor with a gap of 1.388 eV. However, its one-dimensional nanoribbons
can be metals or semiconductors depending on the edge type, shape, and
decoration. Finally, we propose a method to produce the buckled SiC2-pentagon
through chemical exfoliation on the beta-SiC(001)-c(2*2) SDB surface.

29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph