Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum magnetic oscillations and angle-resolved photoemission from
  impurity bands in cuprate superconductors   Present-day angle-resolved photoemission spectroscopy (ARPES) has offered a
tremendous advance in the understanding of electron energy spectra in cuprate
superconductors and some related compounds. However, in high magnetic field,
magnetic quantum oscillations at low temperatures indicate the existence of
small electron (hole) Fermi pockets seemingly missing in ARPES of hole
(electron) doped cuprates. Here ARPES and quantum oscillations are reconciled
in the framework of an impurity band in the charge-transfer Mott-Hubbard
insulator.

27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org