Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase diagram and superconducting dome of infinite-layer
  $\mathrm{Nd_{1-x}Sr_{x}NiO_{2}}$ thin films   Infinite-layer Nd1-xSrxNiO2 thin films with Sr doping level x from 0.08 to
0.3 were synthesized and investigated. We found a superconducting dome to be
between 0.12 and 0.235 which is accompanied by a weakly insulating behaviour in
both underdoped and overdoped regimes. The dome is akin to that in the
electron-doped 214-type and infinite-layer cuprate superconductors. For x
higher than 0.18, the normal state Hall coefficient ($R_{H}$) changes the sign
from negative to positive as the temperature decreases. The temperature of the
sign changes monotonically decreases with decreasing x from the overdoped side
and approaches the superconducting dome at the mid-point, suggesting a
reconstruction of the Fermi surface as the dopant concentration changes across
the center of the dome.

37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg