Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical characterization of electron-phonon interactions at the saddle
  point in graphene   The role of electron-phonon interactions is experimentally and theoretically
investigated near the saddle point absorption peak of graphene. The
differential optical transmission spectra of multiple, non-interacting layers
of graphene reveals the dominant role played by electron-acoustic phonon
coupling in bandstructure renormalization. Using a Born approximation for
electron-phonon coupling and experimental estimates of the dynamic phonon
lattice temperature, we deduce the effective acoustic deformation potential to
be $D^{\rm ac}_{\rm eff} \simeq 5$eV. This value is in accord with recent
theoretical predictions but differs substantially from those obtained using
electrical transport measurements.

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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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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: math
1
The categories of this paper are: cs
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con