Fig. 2: Superconducting gap of H3S.
From: Superconducting gap of H3S measured by tunnelling spectroscopy
a, Temperature dependence of the electrical resistance of H3S-S1. b, X-ray powder diffraction pattern of H3S-S1 (black data points) and the Rietveld refinement of the \(Im\bar{3}m\) phase (red curve). c, Tunnelling spectra of H3S-S1 measured at 20 K. Black arrows indicate positions of quasiparticle peaks. d, Temperature dependence of the tunnelling spectrum for H3S-S1, measured from 20 K (black curve) to 130 K (olive curve) with 10-K steps and 220 K (grey curve, shifted by −7 MΩ−1 for comparison). a.u., arbitrary units.
