Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 2D superconductivity and vortex dynamics in 1T-MoS2   Two-dimensional (2D) superconductivity is a fascinating phenomenon packed
with rich physics and wide technological application. The vortices and their
dynamics arising from classical and quantum fluctuations give rise to
Berezinskii-Kosterlitz-Thouless (BKT) transition and 2D Bose metallic phase
both of which are of fundamental interest. In 2D, observation of
superconductivity and the associated phenomena are sensitive to material
disorders. Highly crystalline and inherently 2D van der Waals (vW) systems with
carrier concentration and conductivity approaching metallic regime have been a
potential platform. The metallic 1T phase of MoS2, a widely explored vW
material system controllably, engineered from the semiconducting 2H phase, is a
tangible choice. Here, we report the observation of 2D superconductivity
accompanied by BKT transition and Bose metallic state in a few-layer 1T-MoS2.
Structural characterization shows excellent crystallinity over extended lateral
dimension. The electrical characterization confirms the metallic nature down to
4 K and a transition to a superconducting state below 1.2 K with a Tc ~ 920 mK.
The 2D nature of the superconducting state is confirmed from the
magneto-transport anisotropy against field orientations and the presence of BKT
transition. In addition, our sample showcases a manifold increase in the
parallel upper-critical-field above the Pauli limit. The inherent
two-dimensionality and possibility of scalably engineering semiconducting,
metallic and superconducting phases makes MoS2 a potential candidate for
hosting monolithic all-two-dimensional hybrid quantum devices.

12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess