{
  "counts": {
    "above_hull": 35,
    "entries": 106,
    "intervals": 9,
    "vertices": 10
  },
  "elements": [
    "LA",
    "ZN"
  ],
  "flags": [
    "degenerate_endpoints",
    "has_intermediate_compounds",
    "mp_agreement_not_comparable",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-ref-La",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -0.63195116,
          "right": {
            "phase": "oqmd-17583",
            "x": 0.5
          },
          "slope": -0.63195116,
          "x_hi": 0.5,
          "x_lo": 0.0
        },
        {
          "intercept": -0.15420582999999885,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-17583",
            "x": 0.5
          },
          "mu_a_rel": -0.15420582999999885,
          "mu_b_rel": -0.4777453300000011,
          "right": {
            "phase": "oqmd-2027703",
            "x": 0.6666666666666666
          },
          "slope": -0.32353950000000226,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "intercept": -0.5588127350000018,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2027703",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -0.5588127350000018,
          "mu_b_rel": -0.2754418774999996,
          "right": {
            "phase": "oqmd-24093",
            "x": 0.8
          },
          "slope": 0.28337085750000224,
          "x_hi": 0.8,
          "x_lo": 0.6666666666666666
        },
        {
          "intercept": -0.8070657849999923,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-24093",
            "x": 0.8
          },
          "mu_a_rel": -0.8070657849999923,
          "mu_b_rel": -0.213378615000002,
          "right": {
            "phase": "oqmd-643354",
            "x": 0.8333333333333334
          },
          "slope": 0.5936871699999903,
          "x_hi": 0.8333333333333334,
          "x_lo": 0.8
        },
        {
          "intercept": -0.8495878885714339,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-643354",
            "x": 0.8333333333333334
          },
          "mu_a_rel": -0.8495878885714339,
          "mu_b_rel": -0.20487419428571374,
          "right": {
            "phase": "oqmd-668320",
            "x": 0.88
          },
          "slope": 0.6447136942857201,
          "x_hi": 0.88,
          "x_lo": 0.8333333333333334
        },
        {
          "intercept": -1.3422174828571312,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-668320",
            "x": 0.88
          },
          "mu_a_rel": -1.3422174828571312,
          "mu_b_rel": -0.13769743142857327,
          "right": {
            "phase": "oqmd-17369",
            "x": 0.8947368421052632
          },
          "slope": 1.204520051428558,
          "x_hi": 0.8947368421052632,
          "x_lo": 0.88
        },
        {
          "intercept": -1.704394471000002,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-17369",
            "x": 0.8947368421052632
          },
          "mu_a_rel": -1.704394471000002,
          "mu_b_rel": -0.09508837400000014,
          "right": {
            "phase": "oqmd-19301",
            "x": 0.9166666666666666
          },
          "slope": 1.609306097000002,
          "x_hi": 0.9166666666666666,
          "x_lo": 0.8947368421052632
        },
        {
          "intercept": -2.5000208575000333,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-19301",
            "x": 0.9166666666666666
          },
          "mu_a_rel": -2.5000208575000333,
          "mu_b_rel": -0.022758702499996897,
          "right": {
            "phase": "oqmd-30675",
            "x": 0.9285714285714286
          },
          "slope": 2.4772621550000364,
          "x_hi": 0.9285714285714286,
          "x_lo": 0.9166666666666666
        },
        {
          "intercept": -2.7958839899999974,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-30675",
            "x": 0.9285714285714286
          },
          "mu_a_rel": -2.7958839899999974,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "oqmd-122929",
            "x": 1.0
          },
          "slope": 2.7958839899999974,
          "x_hi": 1.0,
          "x_lo": 0.9285714285714286
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [
            {
              "energy": 0.0,
              "phase": "oqmd-1215430"
            }
          ],
          "energy": 0.0,
          "energy_per_atom": -4.935436,
          "entries_at_x": 20,
          "formula": "La",
          "nsites": null,
          "phase": "oqmd-ref-La",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.31597558,
          "energy_per_atom": -3.41670676,
          "entries_at_x": 23,
          "formula": "La1 Zn1",
          "nsites": 2,
          "phase": "oqmd-17583",
          "phase_kind": "structure",
          "spacegroup_number": 221,
          "spacegroup_symbol": "Pm-3m",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.36989883000000034,
          "energy_per_atom": -2.8590618833333337,
          "entries_at_x": 7,
          "formula": "La1 Zn2",
          "nsites": 6,
          "phase": "oqmd-2027703",
          "phase_kind": "structure",
          "spacegroup_number": 74,
          "spacegroup_symbol": "Imma",
          "theoretical": true,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.332116049,
          "energy_per_atom": -2.332024601,
          "entries_at_x": 1,
          "formula": "La1 Zn4",
          "nsites": 10,
          "phase": "oqmd-24093",
          "phase_kind": "structure",
          "spacegroup_number": 63,
          "spacegroup_symbol": "Cmcm",
          "theoretical": false,
          "x": 0.8
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.312326476666667,
          "energy_per_atom": -2.18992140333333,
          "entries_at_x": 1,
          "formula": "La1 Zn5",
          "nsites": 6,
          "phase": "oqmd-643354",
          "phase_kind": "structure",
          "spacegroup_number": 191,
          "spacegroup_symbol": "P6/mmm",
          "theoretical": false,
          "x": 0.8333333333333334
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.2822398376000001,
          "energy_per_atom": -1.9885956888,
          "entries_at_x": 1,
          "formula": "La3 Zn22",
          "nsites": 50,
          "phase": "oqmd-668320",
          "phase_kind": "structure",
          "spacegroup_number": 141,
          "spacegroup_symbol": "I41/amd",
          "theoretical": false,
          "x": 0.88
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.264489015789474,
          "energy_per_atom": -1.91676936947368,
          "entries_at_x": 1,
          "formula": "La2 Zn17",
          "nsites": 19,
          "phase": "oqmd-17369",
          "phase_kind": "structure",
          "spacegroup_number": 166,
          "spacegroup_symbol": "R-3m",
          "theoretical": false,
          "x": 0.8947368421052632
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.229197215416667,
          "energy_per_atom": -1.80100807875,
          "entries_at_x": 1,
          "formula": "La1 Zn11",
          "nsites": 24,
          "phase": "oqmd-19301",
          "phase_kind": "structure",
          "spacegroup_number": 141,
          "spacegroup_symbol": "I41/amd",
          "theoretical": false,
          "x": 0.9166666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.199705999285714,
          "energy_per_atom": -1.727833425,
          "entries_at_x": 1,
          "formula": "La1 Zn13",
          "nsites": 28,
          "phase": "oqmd-30675",
          "phase_kind": "structure",
          "spacegroup_number": 226,
          "spacegroup_symbol": "Fm-3c",
          "theoretical": false,
          "x": 0.9285714285714286
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -1.2660268,
          "entries_at_x": 31,
          "formula": "Zn1",
          "nsites": 2,
          "phase": "oqmd-122929",
          "phase_kind": "structure",
          "spacegroup_number": 194,
          "spacegroup_symbol": "P63/mmc",
          "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": 1.0532519578720922e-09,
    "only_mp_stable": [
      "oqmd-ref-Zn"
    ],
    "only_ours_stable": [],
    "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": "LA-ZN",
  "x_element": "ZN"
}
