{
  "counts": {
    "above_hull": 15,
    "entries": 46,
    "intervals": 7,
    "vertices": 8
  },
  "elements": [
    "CA",
    "ZN"
  ],
  "flags": [
    "has_intermediate_compounds",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaaaabt",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -0.5356046149999999,
          "right": {
            "phase": "mp-aaaaaede",
            "x": 0.375
          },
          "slope": -0.5356046149999999,
          "x_hi": 0.375,
          "x_lo": 0.0
        },
        {
          "intercept": -0.06092457000000029,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaaaede",
            "x": 0.375
          },
          "mu_a_rel": -0.06092457000000029,
          "mu_b_rel": -0.4340636649999994,
          "right": {
            "phase": "mp-aaaabtcl",
            "x": 0.5
          },
          "slope": -0.3731390949999991,
          "x_hi": 0.5,
          "x_lo": 0.375
        },
        {
          "intercept": -0.08125913499999984,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaabtcl",
            "x": 0.5
          },
          "mu_a_rel": -0.08125913499999984,
          "mu_b_rel": -0.41372909999999985,
          "right": {
            "phase": "mp-aaaaacoj",
            "x": 0.6666666666666666
          },
          "slope": -0.332469965,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "intercept": -0.6027636516666657,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaaacoj",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -0.6027636516666657,
          "mu_b_rel": -0.15297684166666686,
          "right": {
            "phase": "mp-aaaaacos",
            "x": 0.8333333333333334
          },
          "slope": 0.4497868099999988,
          "x_hi": 0.8333333333333334,
          "x_lo": 0.6666666666666666
        },
        {
          "intercept": -0.8577082683333315,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaaacos",
            "x": 0.8333333333333334
          },
          "mu_a_rel": -0.8577082683333315,
          "mu_b_rel": -0.10198791833333365,
          "right": {
            "phase": "mp-aaaabbmd",
            "x": 0.9166666666666666
          },
          "slope": 0.7557203499999978,
          "x_hi": 0.9166666666666666,
          "x_lo": 0.8333333333333334
        },
        {
          "intercept": -1.1590642814285856,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaabbmd",
            "x": 0.9166666666666666
          },
          "mu_a_rel": -1.1590642814285856,
          "mu_b_rel": -0.07459191714285596,
          "right": {
            "phase": "mp-aaacrvuf",
            "x": 0.9272727272727272
          },
          "slope": 1.0844723642857297,
          "x_hi": 0.9272727272727272,
          "x_lo": 0.9166666666666666
        },
        {
          "intercept": -2.110111225,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaacrvuf",
            "x": 0.9272727272727272
          },
          "mu_a_rel": -2.110111225,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "mp-aaaaaadb",
            "x": 1.0
          },
          "slope": 2.110111225,
          "x_hi": 1.0,
          "x_lo": 0.9272727272727272
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -2.00559988,
          "entries_at_x": 12,
          "formula": "Ca",
          "nsites": 1,
          "phase": "mp-aaaaaabt",
          "phase_kind": "structure",
          "spacegroup_number": 225,
          "spacegroup_symbol": "Fm-3m",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.20085173062499995,
          "energy_per_atom": -1.926755509375,
          "entries_at_x": 1,
          "formula": "Ca5Zn3",
          "nsites": 16,
          "phase": "mp-aaaaaede",
          "phase_kind": "structure",
          "spacegroup_number": 140,
          "spacegroup_symbol": "I4/mcm",
          "theoretical": false,
          "x": 0.375
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.24749411749999983,
          "energy_per_atom": -1.8801658625,
          "entries_at_x": 9,
          "formula": "CaZn",
          "nsites": 4,
          "phase": "mp-aaaabtcl",
          "phase_kind": "structure",
          "spacegroup_number": 63,
          "spacegroup_symbol": "Cmcm",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.30290577833333315,
          "energy_per_atom": -1.8112681449999999,
          "entries_at_x": 2,
          "formula": "CaZn2",
          "nsites": 6,
          "phase": "mp-aaaaacoj",
          "phase_kind": "structure",
          "spacegroup_number": 74,
          "spacegroup_symbol": "Imma",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.22794130999999998,
          "energy_per_atom": -1.6119942983333333,
          "entries_at_x": 1,
          "formula": "CaZn5",
          "nsites": 6,
          "phase": "mp-aaaaacos",
          "phase_kind": "structure",
          "spacegroup_number": 191,
          "spacegroup_symbol": "P6/mmm",
          "theoretical": false,
          "x": 0.8333333333333334
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.16496461416666688,
          "energy_per_atom": -1.4868629133333335,
          "entries_at_x": 1,
          "formula": "CaZn11",
          "nsites": 24,
          "phase": "mp-aaaabbmd",
          "phase_kind": "structure",
          "spacegroup_number": 141,
          "spacegroup_symbol": "I4_1/amd",
          "theoretical": false,
          "x": 0.9166666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.15346263454545458,
          "energy_per_atom": -1.467450336909091,
          "entries_at_x": 1,
          "formula": "Ca4Zn51",
          "nsites": 55,
          "phase": "mp-aaacrvuf",
          "phase_kind": "structure",
          "spacegroup_number": 148,
          "spacegroup_symbol": "R-3",
          "theoretical": true,
          "x": 0.9272727272727272
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -1.25974361,
          "entries_at_x": 8,
          "formula": "Zn",
          "nsites": 2,
          "phase": "mp-aaaaaadb",
          "phase_kind": "structure",
          "spacegroup_number": 194,
          "spacegroup_symbol": "P6_3/mmc",
          "theoretical": false,
          "x": 1.0
        }
      ]
    }
  ],
  "mp_agreement": {
    "comparable": true,
    "comparable_note": "",
    "max_abs_delta_energy_above_hull": 1.6653345369377348e-16,
    "only_mp_stable": [],
    "only_ours_stable": [],
    "stable_sets_match": true
  },
  "provenance": {
    "above_hull_window_eV": 0.05,
    "builder_version": 1,
    "collinear_tol": 1e-12,
    "correction_model": "MP2020 (applied upstream by the Materials Project; none added)",
    "degenerate_tol": 1e-06,
    "entry_pool": "all_nondeprecated",
    "is_stable_source": "upstream_flag",
    "observed_at": "2026-09-01T20:54:47Z",
    "snapshot_scope_elements": [],
    "snapshot_scope_kind": "full",
    "snapshot_sha256": "b6deba8ecf1b67211b3d89cd33a5f98a1939d4bcd92db561818195e55187492a",
    "source_release": "2026.04.13",
    "stability_tol": 0.0001,
    "thermo_type": "GGA_GGA+U",
    "upstream_energy_corrections": "MP2020 compatibility corrections (anion and GGA/GGA+U mixing corrections), applied by the Materials Project to its GGA_GGA+U thermo energies"
  },
  "reference": {
    "kind": "dft_elemental_ground_state_0K",
    "per": "atom",
    "temperature_K": 0.0,
    "units": "eV/atom"
  },
  "schema_version": 1,
  "system_id": "CA-ZN",
  "x_element": "ZN"
}