{
  "counts": {
    "above_hull": 31,
    "entries": 93,
    "intervals": 13,
    "vertices": 14
  },
  "elements": [
    "AU",
    "YB"
  ],
  "flags": [
    "has_intermediate_compounds",
    "mp_agreement_not_comparable",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-636382",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -2.9894124150000003,
          "right": {
            "phase": "oqmd-2132025",
            "x": 0.14285714285714285
          },
          "slope": -2.9894124150000003,
          "x_hi": 0.14285714285714285,
          "x_lo": 0.0
        },
        {
          "intercept": -0.03356459499999792,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2132025",
            "x": 0.14285714285714285
          },
          "mu_a_rel": -0.03356459499999792,
          "mu_b_rel": -2.7880248450000127,
          "right": {
            "phase": "oqmd-1375861",
            "x": 0.16666666666666666
          },
          "slope": -2.754460250000015,
          "x_hi": 0.16666666666666666,
          "x_lo": 0.14285714285714285
        },
        {
          "intercept": -0.07421566421052733,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-1375861",
            "x": 0.16666666666666666
          },
          "mu_a_rel": -0.07421566421052733,
          "mu_b_rel": -2.5847694989473657,
          "right": {
            "phase": "oqmd-2141575",
            "x": 0.2153846153846154
          },
          "slope": -2.5105538347368386,
          "x_hi": 0.2153846153846154,
          "x_lo": 0.16666666666666666
        },
        {
          "intercept": -0.10738204000001006,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2141575",
            "x": 0.2153846153846154
          },
          "mu_a_rel": -0.10738204000001006,
          "mu_b_rel": -2.463949129999964,
          "right": {
            "phase": "oqmd-1782445",
            "x": 0.2222222222222222
          },
          "slope": -2.3565670899999542,
          "x_hi": 0.2222222222222222,
          "x_lo": 0.2153846153846154
        },
        {
          "intercept": -0.1645180699999994,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-1782445",
            "x": 0.2222222222222222
          },
          "mu_a_rel": -0.1645180699999994,
          "mu_b_rel": -2.2639730250000016,
          "right": {
            "phase": "oqmd-10825",
            "x": 0.25
          },
          "slope": -2.0994549550000023,
          "x_hi": 0.25,
          "x_lo": 0.2222222222222222
        },
        {
          "intercept": -0.2026401179999998,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10825",
            "x": 0.25
          },
          "mu_a_rel": -0.2026401179999998,
          "mu_b_rel": -2.1496068810000004,
          "right": {
            "phase": "oqmd-2141603",
            "x": 0.32075471698113206
          },
          "slope": -1.9469667630000007,
          "x_hi": 0.32075471698113206,
          "x_lo": 0.25
        },
        {
          "intercept": -0.4436795069512198,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2141603",
            "x": 0.32075471698113206
          },
          "mu_a_rel": -0.4436795069512198,
          "mu_b_rel": -1.6391705279268287,
          "right": {
            "phase": "oqmd-2136801",
            "x": 0.4117647058823529
          },
          "slope": -1.1954910209756089,
          "x_hi": 0.4117647058823529,
          "x_lo": 0.32075471698113206
        },
        {
          "intercept": -0.7778248041666663,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2136801",
            "x": 0.4117647058823529
          },
          "mu_a_rel": -0.7778248041666663,
          "mu_b_rel": -1.1618201033333335,
          "right": {
            "phase": "oqmd-28233",
            "x": 0.5
          },
          "slope": -0.3839952991666673,
          "x_hi": 0.5,
          "x_lo": 0.4117647058823529
        },
        {
          "intercept": -1.3974677749999942,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-28233",
            "x": 0.5
          },
          "mu_a_rel": -1.3974677749999942,
          "mu_b_rel": -0.5421771325000057,
          "right": {
            "phase": "oqmd-10829",
            "x": 0.5555555555555556
          },
          "slope": 0.8552906424999885,
          "x_hi": 0.5555555555555556,
          "x_lo": 0.5
        },
        {
          "intercept": -1.7193202275000057,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10829",
            "x": 0.5555555555555556
          },
          "mu_a_rel": -1.7193202275000057,
          "mu_b_rel": -0.2846951704999965,
          "right": {
            "phase": "oqmd-10826",
            "x": 0.625
          },
          "slope": 1.4346250570000092,
          "x_hi": 0.625,
          "x_lo": 0.5555555555555556
        },
        {
          "intercept": -1.9337376575000007,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10826",
            "x": 0.625
          },
          "mu_a_rel": -1.9337376575000007,
          "mu_b_rel": -0.15604471249999952,
          "right": {
            "phase": "oqmd-10827",
            "x": 0.7
          },
          "slope": 1.7776929450000012,
          "x_hi": 0.7,
          "x_lo": 0.625
        },
        {
          "intercept": -2.2261175775000015,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10827",
            "x": 0.7
          },
          "mu_a_rel": -2.2261175775000015,
          "mu_b_rel": -0.030739032499999208,
          "right": {
            "phase": "oqmd-1787132",
            "x": 0.75
          },
          "slope": 2.1953785450000023,
          "x_hi": 0.75,
          "x_lo": 0.7
        },
        {
          "intercept": -2.318334674999999,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-1787132",
            "x": 0.75
          },
          "mu_a_rel": -2.318334674999999,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "oqmd-8144",
            "x": 1.0
          },
          "slope": 2.318334674999999,
          "x_hi": 1.0,
          "x_lo": 0.75
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -3.26680174,
          "entries_at_x": 32,
          "formula": "Au1",
          "nsites": 1,
          "phase": "oqmd-636382",
          "phase_kind": "structure",
          "spacegroup_number": 225,
          "spacegroup_symbol": "Fm-3m",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.42705891642857147,
          "energy_per_atom": -3.443285472142857,
          "entries_at_x": 1,
          "formula": "Au6 Yb1",
          "nsites": 14,
          "phase": "oqmd-2132025",
          "phase_kind": "structure",
          "spacegroup_number": 15,
          "spacegroup_symbol": "C2/c",
          "theoretical": true,
          "x": 0.14285714285714285
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.4926413033333337,
          "energy_per_atom": -3.4671053283333335,
          "entries_at_x": 2,
          "formula": "Au5 Yb1",
          "nsites": 6,
          "phase": "oqmd-1375861",
          "phase_kind": "structure",
          "spacegroup_number": 160,
          "spacegroup_symbol": "R3m",
          "theoretical": true,
          "x": 0.16666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.6149503363076926,
          "energy_per_atom": -3.5039617984615385,
          "entries_at_x": 1,
          "formula": "Au51 Yb14",
          "nsites": 65,
          "phase": "oqmd-2141575",
          "phase_kind": "structure",
          "spacegroup_number": 174,
          "spacegroup_symbol": "P-6",
          "theoretical": true,
          "x": 0.2153846153846154
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.6310636155555555,
          "energy_per_atom": -3.5080817355555554,
          "entries_at_x": 1,
          "formula": "Au7 Yb2",
          "nsites": 18,
          "phase": "oqmd-1782445",
          "phase_kind": "structure",
          "spacegroup_number": 63,
          "spacegroup_symbol": "Cmcm",
          "theoretical": true,
          "x": 0.2222222222222222
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.68938180875,
          "energy_per_atom": -3.51767697625,
          "entries_at_x": 5,
          "formula": "Au3 Yb1",
          "nsites": 8,
          "phase": "oqmd-10825",
          "phase_kind": "structure",
          "spacegroup_number": 59,
          "spacegroup_symbol": "Pmmn",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.8271388910377359,
          "energy_per_atom": -3.531328424811321,
          "entries_at_x": 1,
          "formula": "Au36 Yb17",
          "nsites": 106,
          "phase": "oqmd-2141603",
          "phase_kind": "structure",
          "spacegroup_number": 129,
          "spacegroup_symbol": "P4/nmm",
          "theoretical": true,
          "x": 0.32075471698113206
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.9359405155882352,
          "energy_per_atom": -3.4804961361764706,
          "entries_at_x": 1,
          "formula": "Au10 Yb7",
          "nsites": 34,
          "phase": "oqmd-2136801",
          "phase_kind": "structure",
          "spacegroup_number": 64,
          "spacegroup_symbol": "Cmca",
          "theoretical": true,
          "x": 0.4117647058823529
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.96982245375,
          "energy_per_atom": -3.35961104875,
          "entries_at_x": 6,
          "formula": "Au1 Yb1",
          "nsites": 8,
          "phase": "oqmd-28233",
          "phase_kind": "structure",
          "spacegroup_number": 62,
          "spacegroup_symbol": "Pnma",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.922306306944445,
          "energy_per_atom": -3.21464899694444,
          "entries_at_x": 1,
          "formula": "Au4 Yb5",
          "nsites": 36,
          "phase": "oqmd-10829",
          "phase_kind": "structure",
          "spacegroup_number": 62,
          "spacegroup_symbol": "Pnma",
          "theoretical": false,
          "x": 0.5555555555555556
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.822679566875,
          "energy_per_atom": -2.993214875625,
          "entries_at_x": 1,
          "formula": "Au3 Yb5",
          "nsites": 16,
          "phase": "oqmd-10826",
          "phase_kind": "structure",
          "spacegroup_number": 140,
          "spacegroup_symbol": "I4/mcm",
          "theoretical": false,
          "x": 0.625
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.689352596,
          "energy_per_atom": -2.728335933,
          "entries_at_x": 1,
          "formula": "Au3 Yb7",
          "nsites": 20,
          "phase": "oqmd-10827",
          "phase_kind": "structure",
          "spacegroup_number": 186,
          "spacegroup_symbol": "P63mc",
          "theoretical": false,
          "x": 0.7
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.5795836687499998,
          "energy_per_atom": -2.53086569125,
          "entries_at_x": 5,
          "formula": "Au1 Yb3",
          "nsites": 16,
          "phase": "oqmd-1787132",
          "phase_kind": "structure",
          "spacegroup_number": 62,
          "spacegroup_symbol": "Pnma",
          "theoretical": true,
          "x": 0.75
        },
        {
          "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": 0.000993923333333313,
    "only_mp_stable": [
      "oqmd-ref-Au",
      "oqmd-ref-Yb"
    ],
    "only_ours_stable": [
      "oqmd-1375861"
    ],
    "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": "AU-YB",
  "x_element": "YB"
}