{
  "counts": {
    "above_hull": 25,
    "entries": 80,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "SN",
    "YB"
  ],
  "flags": [
    "has_intermediate_compounds",
    "mp_agreement_not_comparable",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-ref-Sn",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -2.059866510553608,
          "right": {
            "phase": "oqmd-18138",
            "x": 0.25
          },
          "slope": -2.059866510553608,
          "x_hi": 0.25,
          "x_lo": 0.0
        },
        {
          "intercept": -0.3013702093512043,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-18138",
            "x": 0.25
          },
          "mu_a_rel": -0.3013702093512043,
          "mu_b_rel": -1.155755882499995,
          "right": {
            "phase": "oqmd-2038002",
            "x": 0.375
          },
          "slope": -0.8543856731487907,
          "x_hi": 0.375,
          "x_lo": 0.25
        },
        {
          "intercept": -0.3259927768512,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2038002",
            "x": 0.375
          },
          "mu_a_rel": -0.3259927768512,
          "mu_b_rel": -1.1147182700000022,
          "right": {
            "phase": "oqmd-31091",
            "x": 0.5
          },
          "slope": -0.7887254931488021,
          "x_hi": 0.5,
          "x_lo": 0.375
        },
        {
          "intercept": -0.7839461668512021,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-31091",
            "x": 0.5
          },
          "mu_a_rel": -0.7839461668512021,
          "mu_b_rel": -0.65676488,
          "right": {
            "phase": "oqmd-18137",
            "x": 0.6666666666666666
          },
          "slope": 0.12718128685120214,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "intercept": -2.0974759268512018,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-18137",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -2.0974759268512018,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "oqmd-8144",
            "x": 1.0
          },
          "slope": 2.0974759268512018,
          "x_hi": 1.0,
          "x_lo": 0.6666666666666666
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -4.007039,
          "entries_at_x": 28,
          "formula": "Sn",
          "nsites": null,
          "phase": "oqmd-ref-Sn",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.514966627638402,
          "energy_per_atom": -3.8287301825,
          "entries_at_x": 4,
          "formula": "Sn3 Yb1",
          "nsites": 4,
          "phase": "oqmd-18138",
          "phase_kind": "structure",
          "spacegroup_number": 221,
          "spacegroup_symbol": "Pm-3m",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.6217648367820008,
          "energy_per_atom": -3.6353637075,
          "entries_at_x": 2,
          "formula": "Sn5 Yb3",
          "nsites": 16,
          "phase": "oqmd-2038002",
          "phase_kind": "structure",
          "spacegroup_number": 63,
          "spacegroup_symbol": "Cmcm",
          "theoretical": true,
          "x": 0.375
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.720355523425601,
          "energy_per_atom": -3.43378971,
          "entries_at_x": 6,
          "formula": "Sn1 Yb1",
          "nsites": 2,
          "phase": "oqmd-31091",
          "phase_kind": "structure",
          "spacegroup_number": 123,
          "spacegroup_symbol": "P4/mmm",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.699158642283734,
          "energy_per_atom": -3.01237325,
          "entries_at_x": 4,
          "formula": "Sn1 Yb2",
          "nsites": 6,
          "phase": "oqmd-18137",
          "phase_kind": "structure",
          "spacegroup_number": 194,
          "spacegroup_symbol": "P63/mmc",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -1.51277545,
          "entries_at_x": 20,
          "formula": "Yb1",
          "nsites": 1,
          "phase": "oqmd-8144",
          "phase_kind": "structure",
          "spacegroup_number": 225,
          "spacegroup_symbol": "Fm-3m",
          "theoretical": false,
          "x": 1.0
        }
      ]
    }
  ],
  "mp_agreement": {
    "comparable": false,
    "comparable_note": "is_stable is derived by the extraction, not an upstream flag, so comparing it against a hull recomputed from the same energies tests the derivation rather than the data",
    "max_abs_delta_energy_above_hull": 0.00011728750000006283,
    "only_mp_stable": [
      "oqmd-ref-Yb"
    ],
    "only_ours_stable": [
      "oqmd-18138"
    ],
    "stable_sets_match": false
  },
  "provenance": {
    "above_hull_window_eV": 0.05,
    "builder_version": 1,
    "collinear_tol": 1e-12,
    "correction_model": "OQMD fit-partial ('standard' fit, applied upstream by OQMD; none added)",
    "degenerate_tol": 1e-06,
    "entry_pool": "all_nondeprecated",
    "is_stable_source": "derived",
    "observed_at": "2026-09-05T17:02:03Z",
    "snapshot_scope_elements": [],
    "snapshot_scope_kind": "full",
    "snapshot_sha256": "2a9393262c52ec35600424236c352a4cdb3291c8b25c1c6588f5e62abe8e0d8d",
    "source_release": "qmdb_v1_8_022026",
    "stability_tol": 0.0001,
    "thermo_type": "standard",
    "upstream_energy_corrections": "OQMD 'standard' fit (fit-partial of Kirklin et al. 2015): elemental reference energies of a subset of elements fitted to experimental formation enthalpies, applied by OQMD"
  },
  "reference": {
    "kind": "dft_fitted_elemental_reference_0K",
    "per": "atom",
    "temperature_K": 0.0,
    "units": "eV/atom"
  },
  "schema_version": 1,
  "system_id": "SN-YB",
  "x_element": "YB"
}
