Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long wavelength properties of electron-TO-phonon interactions in polar
  crystals   Theoretical analysis dealing with the interaction of electrons with the polar
long-wavelength transverse optical (TO) vibrations is presented. The theory is
based on the model of a polar crystal with classical potentials, which takes
into account the electronic polarizability effects. A significant enhancement
of the strength of the electron-TO-phonon interaction in ferroelectrics is
found. A microscopic justification of this effect is given. A bridge that
relates the interaction of electrons with the polar long-wavelength TO modes of
the lattice vibrations to the long-range dipole-dipole interaction is
established. As an application of our analysis, a new equation representing the
relationship between the electron-TO-phonon interaction constant and material
parameters is obtained.

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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th