Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Band structure and electron-phonon coupling in H$_3$S:a tight-binding
  model   We present a robust tight-binding description, based on the Slater-Koster
formalism, of the band structure of H$_3$S in the {\em Im}$\bar{3}${\em m}
structure, stable in the range of pressure $P = 180-220$ GPa. We show that the
interatomic hopping between the 3$s$ and 3$p$ orbitals (and partially between
the 3$p$ orbitals themselves) of sulphur is fundamental to capture the relevant
physics associated with the Van Hove singularities close to the Fermi level.
Comparing the model so defined with density functional theory calculations we
obtain a very good agreement not only of the overall band-structure, but also
of the low-energy states and of the Fermi surface properties. The description
in terms of Slater-Koster parameters permits us also to evaluate at a
microscopic level a hopping-resolved linear electron-lattice coupling which can
be employed for further tight-binding analyses also at a local scale.

34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat