Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pseudogap behavior of phase-separated Sm$_{1-x}$Ca$_x$MnO$_3$ : A
  comparative photoemission study with double exchange   Using valence band photoemission we have demonstrated the presence of a
pseudogap in the near Fermi level electronic spectrum of some of the mixed
phase compositions of Sm$_{1-x}$Ca$_x$MnO$_3$ system. The pseudogap was found
to grow in size over a large region of the phase diagram of this system,
finally leading to a metal-insulator transition. We have made a study comparing
the near Fermi level behaviors of this system to those of a canonical double
exchange system, namely, La$_{1-x}$Sr$_x$MnO$_3$. This study intends to
highlight one of the important differences between the phase separated and
double exchange colossal magnetoresistance systems in the nature of their
energy gaps across the metal-insulator transitions. These differences could be
ascribed to the distortions in the MnO$_6$ octahedra of their structures that
regulate the localization of charge carriers. We have discussed our results
from the point of view of models based on the idea of phase separation.

28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat