{
  "counts": {
    "above_hull": 9,
    "entries": 27,
    "intervals": 4,
    "vertices": 5
  },
  "elements": [
    "CO",
    "ZN"
  ],
  "flags": [
    "has_intermediate_compounds",
    "theoretical_vertices"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaaaacc",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -0.11653961909090911,
          "right": {
            "phase": "mp-aaacpvwb",
            "x": 0.8461538461538461
          },
          "slope": -0.11653961909090911,
          "x_hi": 0.8461538461538461,
          "x_lo": 0.0
        },
        {
          "intercept": -0.3029304439655151,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaacpvwb",
            "x": 0.8461538461538461
          },
          "mu_a_rel": -0.3029304439655151,
          "mu_b_rel": -0.06146135655172455,
          "right": {
            "phase": "mp-aaacrerh",
            "x": 0.8833333333333333
          },
          "slope": 0.24146908741379056,
          "x_hi": 0.8833333333333333,
          "x_lo": 0.8461538461538461
        },
        {
          "intercept": -0.7247611178947335,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaacrerh",
            "x": 0.8833333333333333
          },
          "mu_a_rel": -0.7247611178947335,
          "mu_b_rel": -0.005747871315790021,
          "right": {
            "phase": "mp-aaaabtfs",
            "x": 0.9285714285714286
          },
          "slope": 0.7190132465789435,
          "x_hi": 0.9285714285714286,
          "x_lo": 0.8833333333333333
        },
        {
          "intercept": -0.7994834450000038,
          "kind": "two_phase",
          "left": {
            "phase": "mp-aaaabtfs",
            "x": 0.9285714285714286
          },
          "mu_a_rel": -0.7994834450000038,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "mp-aaaaaadb",
            "x": 1.0
          },
          "slope": 0.7994834450000038,
          "x_hi": 1.0,
          "x_lo": 0.9285714285714286
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -7.108317795,
          "entries_at_x": 8,
          "formula": "Co",
          "nsites": 2,
          "phase": "mp-aaaaaacc",
          "phase_kind": "structure",
          "spacegroup_number": 194,
          "spacegroup_symbol": "P6_3/mmc",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.09861044692307694,
          "energy_per_atom": -2.2581347007692307,
          "entries_at_x": 1,
          "formula": "Zn11Co2",
          "nsites": 26,
          "phase": "mp-aaacpvwb",
          "phase_kind": "structure",
          "spacegroup_number": 217,
          "spacegroup_symbol": "I-43m",
          "theoretical": false,
          "x": 0.8461538461538461
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.08963275008333345,
          "energy_per_atom": -2.031710015,
          "entries_at_x": 1,
          "formula": "Zn53Co7",
          "nsites": 60,
          "phase": "mp-aaacrerh",
          "phase_kind": "structure",
          "spacegroup_number": 3,
          "spacegroup_symbol": "P2",
          "theoretical": true,
          "x": 0.8833333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.057105960357143104,
          "energy_per_atom": -1.7346048692857143,
          "entries_at_x": 1,
          "formula": "Zn13Co",
          "nsites": 14,
          "phase": "mp-aaaabtfs",
          "phase_kind": "structure",
          "spacegroup_number": 12,
          "spacegroup_symbol": "C2/m",
          "theoretical": false,
          "x": 0.9285714285714286
        },
        {
          "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": 8.881784197001252e-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": "CO-ZN",
  "x_element": "ZN"
}