Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field-induced transition between magnetically disordered and ordered
  phases in underdoped La(2-x)SrxCuO4   We report the observation of a magnetic-field-induced transition between
magnetically disordered and ordered phases in slightly under-doped
La(2-x)SrxCuO4 with x=0.144. Static incommensurate spin-density-wave order is
induced above a critical field of about 3 T, as measured by elastic neutron
scattering. Our results allow us to constrain the location of a quantum
critical point on the phase diagram.

22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ