Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible Realization and Protection of Valley-Polarized Quantum Hall
  Effect in Mn/WS2   By using the first-principles calculations and model analyses, we found that
the combination of defected tungsten disulfide monolayer and sparse manganese
adsorption may give a KK` valley spin splitting up to 210 meV. This system also
has a tunable magnetic anisotropy energy, a clean band gap, and an appropriate
band alignment, with the Fermi level sitting right above the top of valence
bands at the K-valleys. Therefore, it can be used for the realization of the
valley-polarized anomalous Hall effect and for the exploration of other valley
related physics without using optical methods. A protective environment can be
formed by covering it with a hexagonal BN layer, without much disturbance to
the benign properties of Mn/WS2.

28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph