Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear response and two stable electrical conductivity levels
  measured in plasticized PVC thin film samples   The electrical conductivity of PVC films prepared with a patented plasticizer
of type "A" was measured with high precision automated setup, based on standard
ring sell with a voltage range much less than breakdown voltage. Continual
voltage-current measurements permit to take into account Debay relaxation
process and clearly distinguish specific polymer film conductivity effects,
connected with continuous current-stabilization behavior and transitions
between two stable (long-living) states with several order magnitude different
conductivities. Spontaneous reversible and non-destructive transitions of
resistance levels was observed. For 30 mkm polymer films the values of sample
resistance was measured equal to: high- 106 Ohm and low -103 Ohm.

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The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat