Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of anomalous temperature dependence of spectrum on small
  Fermi surfaces in a BiS2-based superconductor   We performed an angle-resolved photoemission spectroscopy study of the
BiS2-based superconductor Nd(O,F)BiS2. Two small electron-like Fermi surfaces
around X (pi, 0) are observed, which enclose 2.4% and 1.1% of the Brillouin
zone area, respectively, corresponding to an electron doping of 7% per Bi site.
The low-energy spectrum consists of a weakly-dispersing broad hump and a
dispersive branch, which follows well the calculated band dispersion. This hump
is drastically suppressed with increasing temperature, while the dispersive
branch is essentially unaffected. The anomalous thermal effect indicates a
highly interacting electronic state, in which the superconducting pairing
develops.

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The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex