Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Raman scattering on phonon-plasmon coupled modes in magnetic fields   Raman scattering on phonon--plasmon coupled modes in high magnetic fields is
considered theoretically. The calculations of the dielectric function were
performed in the long-wave approximation for the semiclassical and
ultra-quantum magnetic fields taking into account the electron damping and
intrinsic lifetime of optical phonons. The Raman scattering has resonances at
the frequencies of coupled modes as well as at multiples of the cyclotron
frequency. The dependence of the Raman cross section on the carrier
concentration is analyzed.

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The categories of this paper are: hep-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio