{
  "counts": {
    "above_hull": 37,
    "entries": 100,
    "intervals": 6,
    "vertices": 7
  },
  "elements": [
    "AL",
    "SR"
  ],
  "flags": [
    "has_intermediate_compounds",
    "mp_agreement_not_comparable",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-ref-Al",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -1.1307553799999999,
          "right": {
            "phase": "oqmd-18718",
            "x": 0.2
          },
          "slope": -1.1307553799999999,
          "x_hi": 0.2,
          "x_lo": 0.0
        },
        {
          "intercept": -0.1715122000000005,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-18718",
            "x": 0.2
          },
          "mu_a_rel": -0.1715122000000005,
          "mu_b_rel": -0.4447065799999981,
          "right": {
            "phase": "oqmd-658979",
            "x": 0.3333333333333333
          },
          "slope": -0.27319437999999757,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.2
        },
        {
          "intercept": -0.321203949999989,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-658979",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -0.321203949999989,
          "mu_b_rel": -0.145323080000021,
          "right": {
            "phase": "oqmd-11623",
            "x": 0.35714285714285715
          },
          "slope": 0.17588086999996802,
          "x_hi": 0.35714285714285715,
          "x_lo": 0.3333333333333333
        },
        {
          "intercept": -0.3388891846153883,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-11623",
            "x": 0.35714285714285715
          },
          "mu_a_rel": -0.3388891846153883,
          "mu_b_rel": -0.11348965769230235,
          "right": {
            "phase": "oqmd-1782460",
            "x": 0.4117647058823529
          },
          "slope": 0.22539952692308596,
          "x_hi": 0.4117647058823529,
          "x_lo": 0.35714285714285715
        },
        {
          "intercept": -0.35549788699999985,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-1782460",
            "x": 0.4117647058823529
          },
          "mu_a_rel": -0.35549788699999985,
          "mu_b_rel": -0.08976294000000001,
          "right": {
            "phase": "oqmd-1783123",
            "x": 0.4444444444444444
          },
          "slope": 0.26573494699999983,
          "x_hi": 0.4444444444444444,
          "x_lo": 0.4117647058823529
        },
        {
          "intercept": -0.4273082389999999,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-1783123",
            "x": 0.4444444444444444
          },
          "mu_a_rel": -0.4273082389999999,
          "mu_b_rel": -5.551115123125783e-17,
          "right": {
            "phase": "oqmd-ref-Sr",
            "x": 1.0
          },
          "slope": 0.42730823899999987,
          "x_hi": 1.0,
          "x_lo": 0.4444444444444444
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -3.745739,
          "entries_at_x": 23,
          "formula": "Al",
          "nsites": null,
          "phase": "oqmd-ref-Al",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.226151076,
          "energy_per_atom": -3.559325404,
          "entries_at_x": 3,
          "formula": "Al4 Sr1",
          "nsites": 5,
          "phase": "oqmd-18718",
          "phase_kind": "structure",
          "spacegroup_number": 139,
          "spacegroup_symbol": "I4/mmm",
          "theoretical": false,
          "x": 0.2
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.262576993333333,
          "energy_per_atom": -3.3207079,
          "entries_at_x": 6,
          "formula": "Al2 Sr1",
          "nsites": 6,
          "phase": "oqmd-658979",
          "phase_kind": "structure",
          "spacegroup_number": 74,
          "spacegroup_symbol": "Imma",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.258389353571429,
          "energy_per_atom": -3.26740536357143,
          "entries_at_x": 1,
          "formula": "Al9 Sr5",
          "nsites": 14,
          "phase": "oqmd-11623",
          "phase_kind": "structure",
          "spacegroup_number": 166,
          "spacegroup_symbol": "R-3m",
          "theoretical": false,
          "x": 0.35714285714285715
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.2460776147058823,
          "energy_per_atom": -3.1424182735294117,
          "entries_at_x": 1,
          "formula": "Al10 Sr7",
          "nsites": 17,
          "phase": "oqmd-1782460",
          "phase_kind": "structure",
          "spacegroup_number": 166,
          "spacegroup_symbol": "R-3m",
          "theoretical": true,
          "x": 0.4117647058823529
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.23739346611111106,
          "energy_per_atom": -3.0663215216666666,
          "entries_at_x": 1,
          "formula": "Al5 Sr4",
          "nsites": 18,
          "phase": "oqmd-1783123",
          "phase_kind": "structure",
          "spacegroup_number": 194,
          "spacegroup_symbol": "P63/mmc",
          "theoretical": true,
          "x": 0.4444444444444444
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -1.682914,
          "entries_at_x": 24,
          "formula": "Sr",
          "nsites": null,
          "phase": "oqmd-ref-Sr",
          "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": 1.0496111111146789e-05,
    "only_mp_stable": [],
    "only_ours_stable": [
      "oqmd-1783123"
    ],
    "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": "AL-SR",
  "x_element": "SR"
}