Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Valley-Polarized Quantum Anomalous-Hall Effects in Silicene   We demonstrate a new quantum state of matter---valley-polarized quantum
anomalous Hall effect in monolayer silicene. In the presence of extrinsic
Rashba spin-orbit coupling and exchange field, monolayer silicene can host a
quantum anomalous-Hall state with Chern number C=2. We find that through tuning
Rashba spin-orbit coupling, a topological phase transition gives rise to a
valley polarized quantum anomalous Hall state, i.e. a quantum state which
exhibits electronic properties of both quantum valley-Hall effect (valley Chern
number C_V=3) and quantum anomalous Hall effect with C=-1.

18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci