{
 "note": "Coupling strength and logarithmic phonon frequency from published calculations. omega_log in kelvin. 'group' is one of pressure (measured superconductors that exist only under pressure), predicted (ambient-pressure predictions), ambient (known ambient-pressure superconductors).",
 "points": [
  {
   "label": "LaH₁₀",
   "group": "pressure",
   "lambda": 2.67,
   "omega_log": 1119,
   "detail": "163 GPa, anharmonic; measured Tc 250 K",
   "source": "errea2020"
  },
  {
   "label": "H₃S",
   "group": "pressure",
   "lambda": 1.84,
   "omega_log": 1078,
   "detail": "200 GPa, anharmonic; measured Tc 190 to 203 K",
   "source": "errea2015"
  },
  {
   "label": "CaH₆",
   "group": "pressure",
   "lambda": 2.0,
   "omega_log": 1207,
   "detail": "200 GPa, harmonic; measured Tc 215 K",
   "source": "lucrezi2024"
  },
  {
   "label": "YH₆",
   "group": "pressure",
   "lambda": 2.0,
   "omega_log": 1253,
   "detail": "200 GPa, harmonic; measured Tc 224 K",
   "source": "lucrezi2024"
  },
  {
   "label": "Mg₂IrH₆",
   "group": "predicted",
   "lambda": 2.1,
   "omega_log": 580,
   "detail": "predicted, 1 atm",
   "source": "sanna2024"
  },
  {
   "label": "Mg₂IrH₆",
   "group": "predicted",
   "lambda": 2.56,
   "omega_log": 391,
   "detail": "predicted, 1 atm, second calculation",
   "source": "zheng2024"
  },
  {
   "label": "Mg₂RhH₆",
   "group": "predicted",
   "lambda": 1.3,
   "omega_log": 766,
   "detail": "predicted, 1 atm",
   "source": "sanna2024"
  },
  {
   "label": "Li₂CuH₆",
   "group": "predicted",
   "lambda": 1.96,
   "omega_log": 491,
   "detail": "predicted, 1 atm",
   "source": "cerqueira2024hydrides"
  },
  {
   "label": "MgB₂",
   "group": "ambient",
   "lambda": 0.87,
   "omega_log": 725,
   "detail": "1 atm; measured Tc 39 K",
   "source": "kong2001"
  },
  {
   "label": "Nb",
   "group": "ambient",
   "lambda": 1.24,
   "omega_log": 154,
   "detail": "1 atm; measured Tc 9.2 K",
   "source": "kawamura2020"
  },
  {
   "label": "Pb",
   "group": "ambient",
   "lambda": 1.45,
   "omega_log": 58,
   "detail": "1 atm; measured Tc 7.2 K",
   "source": "kawamura2020"
  },
  {
   "label": "B₂C₈Cl",
   "group": "predicted",
   "lambda": 3.28,
   "omega_log": 294,
   "detail": "predicted, 1 atm, 989 meV per atom above the hull",
   "source": "gao2025"
  },
  {
   "label": "Li₂AgH₆",
   "group": "predicted",
   "lambda": 3.78,
   "omega_log": 338,
   "detail": "predicted, 1 atm, harmonic",
   "source": "gao2025"
  },
  {
   "label": "Li₂AuH₆",
   "group": "predicted",
   "lambda": 3.86,
   "omega_log": 317,
   "detail": "predicted, 1 atm, harmonic",
   "source": "gao2025"
  },
  {
   "label": "PdH₄",
   "group": "predicted",
   "lambda": 2.21,
   "omega_log": 609,
   "detail": "predicted, 1 atm, harmonic, 319 meV per atom above the hull",
   "source": "li2026pdh4"
  },
  {
   "label": "Mg₂PtH₆",
   "group": "predicted",
   "lambda": 1.4,
   "omega_log": 696,
   "detail": "predicted, 1 atm",
   "source": "sanna2024"
  }
 ]
}