Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-linear electrical response in a charge/orbital ordered
  $\Pr_{0.63}$Ca$_{0.37}$MnO$_3$ crystal : the charge density wave analogy   Non-linear conduction in a charge-ordered manganese oxide
Pr$_{0.63}$Ca$_{0.37}$MnO$_3$ is reported. To interpret such a feature, it is
usually proposed that a breakdown of the charge or orbitally ordered state is
induced by the current. The system behaves in such a way that the bias current
may generate metallic paths giving rise to resistivity drop. One can describe
this feature by considering the coexistence of localized and delocalized
electron states with independent paths of conduction. This situation is
reminiscent of what occurs in charge density wave systems where a similar
non-linear conduction is also observed. In the light of recent experimental
results suggesting the development of charge density waves in charge and
orbitally ordered manganese oxides, a phenomenological model for charge density
waves motion is used to describe the non-linear conduction in
Pr$_{0.63}$Ca$_{0.37}$MnO$_3$. In such a framework, the non-linear conduction
arises from the motion of the charge density waves condensate which carries a
net electrical current.

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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
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The categories of this paper are: cs
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph