{
  "counts": {
    "above_hull": 16,
    "entries": 142,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "MO",
    "NI"
  ],
  "flags": [
    "has_intermediate_compounds",
    "mp_agreement_not_comparable",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-ref-Mo",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -0.1329901850000006,
          "right": {
            "phase": "oqmd-2036101",
            "x": 0.6666666666666666
          },
          "slope": -0.1329901850000006,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.0
        },
        {
          "intercept": -0.030050410000008437,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2036101",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -0.030050410000008437,
          "mu_b_rel": -0.11796497999999637,
          "right": {
            "phase": "oqmd-30767",
            "x": 0.75
          },
          "slope": -0.08791456999998794,
          "x_hi": 0.75,
          "x_lo": 0.6666666666666666
        },
        {
          "intercept": -0.2651034099999796,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-30767",
            "x": 0.75
          },
          "mu_a_rel": -0.2651034099999796,
          "mu_b_rel": -0.039613980000006016,
          "right": {
            "phase": "oqmd-30768",
            "x": 0.8
          },
          "slope": 0.2254894299999736,
          "x_hi": 0.8,
          "x_lo": 0.75
        },
        {
          "intercept": -0.38465085000000054,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-30768",
            "x": 0.8
          },
          "mu_a_rel": -0.38465085000000054,
          "mu_b_rel": -0.009727120000000755,
          "right": {
            "phase": "oqmd-2160073",
            "x": 0.8888888888888888
          },
          "slope": 0.3749237299999998,
          "x_hi": 0.8888888888888888,
          "x_lo": 0.8
        },
        {
          "intercept": -0.4624678100000066,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-2160073",
            "x": 0.8888888888888888
          },
          "mu_a_rel": -0.4624678100000066,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "oqmd-ref-Ni",
            "x": 1.0
          },
          "slope": 0.4624678100000066,
          "x_hi": 1.0,
          "x_lo": 0.8888888888888888
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -10.848084,
          "entries_at_x": 20,
          "formula": "Mo",
          "nsites": null,
          "phase": "oqmd-ref-Mo",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.08866012333333373,
          "energy_per_atom": -7.4157677699999995,
          "entries_at_x": 10,
          "formula": "Mo1 Ni2",
          "nsites": 6,
          "phase": "oqmd-2036101",
          "phase_kind": "structure",
          "spacegroup_number": 63,
          "spacegroup_symbol": "Cmcm",
          "theoretical": true,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.0959863374999994,
          "energy_per_atom": -6.9829719525,
          "entries_at_x": 13,
          "formula": "Mo1 Ni3",
          "nsites": 8,
          "phase": "oqmd-30767",
          "phase_kind": "structure",
          "spacegroup_number": 59,
          "spacegroup_symbol": "Pmmn",
          "theoretical": false,
          "x": 0.75
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.0847118660000007,
          "energy_per_atom": -6.707624262,
          "entries_at_x": 1,
          "formula": "Mo1 Ni4",
          "nsites": 5,
          "phase": "oqmd-30768",
          "phase_kind": "structure",
          "spacegroup_number": 87,
          "spacegroup_symbol": "I4/m",
          "theoretical": false,
          "x": 0.8
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.05138531222222298,
          "energy_per_atom": -6.204834207777778,
          "entries_at_x": 1,
          "formula": "Mo1 Ni8",
          "nsites": 9,
          "phase": "oqmd-2160073",
          "phase_kind": "structure",
          "spacegroup_number": 139,
          "spacegroup_symbol": "I4/mmm",
          "theoretical": true,
          "x": 0.8888888888888888
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -5.56662,
          "entries_at_x": 29,
          "formula": "Ni",
          "nsites": null,
          "phase": "oqmd-ref-Ni",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "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": 0.0011435100000003475,
    "only_mp_stable": [],
    "only_ours_stable": [
      "oqmd-30768"
    ],
    "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": "MO-NI",
  "x_element": "NI"
}