Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic hybrid excitation modes in monolayer and double-layer
  phosphorene on polar substrates   We investigate the anisotropic hybrid plasmon-SO phonon dispersion relations
in monolayer and double-layer phosphorene systems located on the polar
substrates, such as SiO2, h-BN and Al2O3. We calculate these hybrid modes with
using the dynamical dielectric function in the RPA by considering the
electron-electron interaction and long-range electric field generated by the
substrate SO phonons via Frohlich interaction. In the long-wavelength limit, we
obtain some analytical expressions for the hybrid plasmon-SO phonon dispersion
relations which represent the behavior of these modes akin to the modes
obtaining from the loss function. Our results indicate a strong anisotropy in
plasmon-SO phonon modes, whereas they are stronger along the light-mass
direction in our heterostructures. Furthermore, we find that the type of
substrate has a significant effect on the dispersion relations of the coupled
modes. Also, by tuning the misalignment and separation between layers in
double-layer phosphorene on polar substrates, we can engineer the hybrid modes.

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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg