Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The commensurate magnetic excitations induced by band-splitting and
  Fermi surface topology in n-type Cuprates   The antiferromagnetic correlation plays an important role in high-T$_{c}$
superconductors. Considering this effect, the magnetic excitations in n-type
cuprates near the optimal doping are studied within the spin density wave
description. The magnetic excitations are commensurate in the low energy regime
and further develop into spin wave-like dispersion at higher energy, well
consistent with the inelastic neutron scattering measurements. We clearly
demonstrate that the commensurability originates from the band splitting and
Fermi surface topology. The commensurability is a normal state property, and
has nothing to do with d-wave superconductivity. The distinct behaviors of
magnetic excitation between the n-type and p-type cuprates are further
discussed. Our results strongly suggest the essential role of antiferromagnetic
correlations in the cuprates.

33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
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
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int