Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evidence for a nematic component to the Hidden Order parameter in
  URu2Si2 from differential elastoresistance measurements   Measurements of the differential elastoresistance of URu$_2$Si$_2$ reveal
that the fluctuations associated with the 17 K Hidden Order phase transition
have a nematic component. Approaching the "Hidden Order" phase transition from
above, the nematic susceptibility abruptly changes sign, indicating that while
the Hidden Order phase has a nematic component, it breaks additional
symmetries.

5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex