Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamic response of the dielectric and electro-optic properties of
  epitaxial ferroelectric thin films   An analysis of the dynamic dielectric and electro-optic relaxation response
of thin film ferroelectrics is presented. The analysis is based upon the
relaxation of ferroelectric domains with a continuous distribution of sizes
given by percolation theory. The resulting temporal response is described by
the expression (t^-m) exp(-(t/tau)^beta). The analysis was applied to KNbO3
thin films. Measurements of the polarization, birefringence and dielectric
transients show qualitative agreement with the model over 11 orders of
magnitude in time.

23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
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
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc