Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Novel temperature operated electrooptical materials based on K2ZnCl4:
  PVA polymer nanocomposites   We have discovered significant temperature anomalies of the linear
electrooptical (EOE) coefficients for the K2ZnCl4 nanocrystallites embedded
into the polymer matrices. The EOE efficiency was operated by external
dc-electric field and UV polarized laser light. The maximal enhancement of EOE
output was achieved within the temperature range 375 K-420 K. This temperature
range corresponds to existence of incommensurate structural modulation. The
maximally achieved field induced EOE efficiency was equal to about 1.4 pm/V for
off-diagonal EOE tensor component. The size and NC content dependences have
been explored for the size range (20 nm-1500 nm) and contents varying within
the 25%-35%. For the sizes about 1200 nm, the EOE is commensurable with the EOE
of the bulk crystals and is equal to about 0.6 pm/V.

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The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex