Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: VO2 nanosheets: controlling the THz properties through strain
  engineering   We investigate far-infrared properties of strain engineered vanadium dioxide
nanosheets through epitaxial growth on a (100)R TiO2 substrate. The nanosheets
exhibit large uniaxial strain leading to highly uniform and oriented cracks
along the rutile c-axis. Dramatic anisotropy arises for both the
metal-insulator transition temperature, which is different from the structural
transition temperature along the cR axis, and the metallic state conductivity.
Detailed analysis reveals a Mott-Hubbard like behavior along the rutile cR
axis.

21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci