Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temperature dependence of the electronic structure and Fermi-surface
  reconstruction of Eu(1-x)Gd(x)O through the ferromagnetic metal-insulator
  transition   We present angle-resolved photoemission spectroscopy of Eu(1-x)Gd(x)O through
the ferromagnetic metal-insulator transition. In the ferromagnetic phase, we
observe Fermi surface pockets at the Brillouin zone boundary, consistent with
density functional theory, which predicts a half metal. Upon warming into the
paramagnetic state, our results reveal a strong momentum-dependent evolution of
the electronic structure, where the metallic states at the zone boundary are
replaced by pseudogapped states at the Brillouin zone center due to the absence
of magnetic long-range order of the Eu 4f moments.

35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph