Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Antiferromagnetism-superconductivity competition in electron-doped
  cuprates triggered by oxygen reduction   We have performed a systematic angle-resolved photoemission study of as-grown
and oxygen-reduced Pr$_{2-x}$Ce$_x$CuO$_4$ and Pr$_{1-x}$LaCe$_{x}$CuO$_4$
electron-doped cuprates. In contrast to the common belief, neither the band
filling nor the band parameters are significantly affected by the oxygen
reduction process. Instead, we show that the main electronic role of the
reduction process is to remove an anisotropic leading edge gap around the Fermi
surface. While the nodal leading edge gap is induced by long-range
antiferomagnetic order, the origin of the antinodal one remains unclear.

14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn