Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatially resolved optical spectroscopy in extreme environment of low
  temperature, high magnetic fields and high pressure   We present an experimental set-up developed to perform optical spectroscopy
experiments (Raman scattering and photoluminescence measurements) with a
micrometer spatial resolution, in an extreme environment of low temperature,
high magnetic field and high pressure. This unique experimental setup, to the
best of our knowledge, allows us to explore deeply the phase diagram of
condensed matter systems by tuning independently these three thermodynamic
parameters, while monitoring the low-energy excitations (electronic, phononic
or magnetic excitations), to spatially map the Raman scattering response or to
investigate objects with low dimensions. We apply this technique to bulk FePS3,
a layered antiferromagnet with a Neel temperature of T = 120 K.

11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess