Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Carbonaceous sulfur hydride system: the strong-coupled room-temperature
  superconductor with a low value of Ginzburg-Landau parameter   The superconducting state in Carbonaceous Sulfur Hydride (C-S-H) system is
characterized by the record-high critical temperature of $288$~K experimentally
observed at $\sim$267 GPa. Herein, we determined the properties of the
\mbox{C-S-H} superconducting phase within the scope of both classical
Eliashberg equations (CEE) and the Eliashberg equations with vertex corrections
(VCEE). We took into account the scenarios pertinent to either the intermediate
or the high value of electron-phonon coupling constant ($\lambda\sim 0.75$ or
$\lambda\sim 3.3$, respectively). The scenario for the intermediate value,
however, cannot be actually realized due to the anomally high value of
logarithmic phonon frequency ($\omega_{\rm ln}/k_{B}=7150$~K) it would require.
On the other hand, we found it possible to reproduce correctly the value of
$T_{C}$ and other thermodynamic quantities in the case of strong coupling.
However, the vertex corrections lower the order parameter values within the
range from $\sim 50$~K to $\sim275$~K. For the upper critical field $H_{C2}\sim
27$~T, the Ginzburg-Landau parameter $\kappa$ is of the order of $1.7$. This
correlates well with the sharp drop of resistance observed by Hirsch and
Marsiglio at the critical temperature. The strong-coupling scenario for C-S-H
system is also suggested by the high values of $\lambda$ estimated for ${\rm
H_{3}S}$ ($\lambda\sim 2.1$, $\kappa\sim 1.5$), ${\rm LaH_{10}}$ ($\lambda\sim
2.8$-$3.9$, $\kappa\sim 1.6$), and ${\rm YH_{6}}$ ($\lambda\sim 1.7$,
$\kappa\sim 1.3$) compounds.

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The categories of this paper are: atom-ph
18
The categories of this paper are: econ
3
The categories of this paper are: physics
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The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol