Fig. 4: Isotropic superconducting gap of H3S with anharmonic phonons.
From: Electron–phonon vertex correction effect in superconducting H3S
Δ(T) calculated using four approaches: adiabatic FBW (solid orange), adiabatic FBW+μ (solid purple), vertex-corrected FBW (dashed orange), and vertex-corrected FBW+μ (dashed purple), with a Coulomb pseudopotential \({\mu }_{{\rm{E}}}^{* }=0.16\).
