Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Near Fermi level Electronic Structure of Pr$_{1-x}$Sr$_x$MnO$_3$:
  Photoemission Study   In this study, we report the observation of a pseudogap associated with the
insulator-metal transition in compositions of Pr$_{1-x}$Sr$_x$MnO$_3$ system
with no charge ordering. Our valence band photoemission study shows that the
observed shifts in the near Fermi level density of states are abrupt at the
Curie transtion and occur over an energy scale of $\sim$ 1 eV, strongly
suggesting that the charge-ordering gap observed earlier in other manganites
and the pseudogap observed here may indeed have same origin. These results
could be understood within the framework of models based on electronic phase
separation where it has been shown that the pseudogap is a generic feature of
the mixed-phase compositions. Also, our band structure calculations on
Pr$_{0.75}$Sr$_{0.25}$MnO$_3$ show the possible existence of half-metallicity
in this system.

33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol