Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reflection anisotropy experiments to study non-equilibrium dynamics of
  electronic nematicity   Electronic nematicity have attracted a great deal of interest in the
unconventional superconductivity research. We present an experimental method to
investigate reflectivity anisotropy by the electronic nematicity and its
non-equilibrium dynamics. Our experimental results on
Ba(Fe$_{0.955}$Co$_{0.045}$)$_{2}$As$_{2}$ single crystal clearly feature the
broken four-fold symmetry along directions parallel to Fe-Fe bonding. Numerical
simulations using WVASE from Woollam Co. demonstrate that our method is highly
reliable under various experimental conditions. Finally, we perform
time-resolved reflectivity anisotropy measurement confirming that
photo-excitation by 1.55 eV photons suppresses the reflectivity anisotropy due
to nematic order.

17
The categories of this paper are: q-fin
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The categories of this paper are: econ
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin