Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Epitaxial Growth of Single-Orientation High-Quality MoS$_2$ Monolayers   We present a study on the growth and characterization of high-quality
single-layer MoS$_2$ with a single orientation, i.e. without the presence of
mirror domains. This single orientation of the MoS$_2$ layer is established by
means of x-ray photoelectron diffraction. The high quality is evidenced by
combining scanning tunneling microscopy with x-ray photoelectron spectroscopy
measurements. Spin- and angle-resolved photoemission experiments performed on
the sample revealed complete spin-polarization of the valence band states near
the K and -K points of the Brillouin zone. These findings open up the
possibility to exploit the spin and valley degrees of freedom for encoding and
processing information in devices that are based on epitaxially grown
materials.

18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph