Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charge-density-wave order takes over antiferromagnetism in
  Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6}$ superconductors   Superconductivity appears in the cuprates when a spin order is destroyed,
while the role of charge is less known. Recently, charge density wave (CDW) was
found below the superconducting dome in YBa$_2$Cu$_3$O$_y$ when a high magnetic
field is applied perpendicular to the CuO$_2$ plane, which was suggested to
arise from incipient CDW in the vortex cores that becomes overlapped. Here, by
$^{63}$Cu-nuclear magnetic resonance, we report the discovery of CDW induced by
an in-plane field that does not create vortex cores in the plane, setting in
above the dome in single-layered Bi$_2$Sr$_{2-x}$La$_x$CuO$_6$.The onset
temperature $T_{\rm CDW}$ takes over the antiferromagnetic order temperature
$T_{\rm N}$ beyond a critical doping level at which superconductivity starts to
emerge, and scales with the psudogap temperature $T^{*}$. These results provide
important insights into the relationship between spin order, CDW and the
pseudogap, and their connections to high-temperature superconductivity.

29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
9
The categories of this paper are: nlin