{
  "alternatives": [
    {
      "category": "structure",
      "conditions": {
        "method": "single-crystal neutron diffraction",
        "temperature_C": 24
      },
      "id": "lattice-a/unspecified/cod-abrahams1966-pt4",
      "kind": "scalar",
      "name": "Lattice constant a (hexagonal setting)",
      "property": "lattice-a",
      "provenance": {
        "locator": "COD 1541936",
        "original_reference": "Abrahams, Hamilton, Reddy, J. Phys. Chem. Solids 27, 1013 (1966), part 4, DOI 10.1016/0022-3697(66)90073-4",
        "source_id": "cod",
        "status": "P-db",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "a",
      "unit": {
        "display": "Angstrom",
        "ucum": "Ao"
      },
      "value": 5.14829,
      "variant": "unspecified",
      "variant_note": "1966 crystal, composition not stated"
    },
    {
      "category": "structure",
      "id": "lattice-a/unspecified/cod-ohgaki1992",
      "kind": "scalar",
      "name": "Lattice constant a (hexagonal setting)",
      "property": "lattice-a",
      "provenance": {
        "locator": "COD 1544665",
        "source_id": "ohgaki1992",
        "status": "P-db",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "a",
      "unit": {
        "display": "Angstrom",
        "ucum": "Ao"
      },
      "value": 5.1502,
      "variant": "unspecified"
    },
    {
      "category": "structure",
      "id": "lattice-a/unspecified/weis1985-from-density",
      "kind": "scalar",
      "name": "Lattice constant a (hexagonal setting)",
      "property": "lattice-a",
      "provenance": {
        "derivation": "calculated in the source from c = 13.863 A and rho = 4628 kg/m^3",
        "locator": "p. 194",
        "source_id": "weis1985",
        "status": "P",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "a",
      "unit": {
        "display": "Angstrom",
        "ucum": "Ao"
      },
      "value": 5.15,
      "variant": "unspecified"
    }
  ],
  "meta": {
    "api_version": "v1",
    "attribution": "lithium-niobate.com data compiled by Wentao Jiang; cite the original sources listed per value.",
    "data_version": "0.1.0",
    "documentation": "https://lithium-niobate.com/api/openapi.json",
    "license": {
      "id": "CC-BY-4.0",
      "name": "Creative Commons Attribution 4.0 International",
      "url": "https://creativecommons.org/licenses/by/4.0/"
    },
    "property": "lattice-a",
    "variant": "unspecified"
  },
  "recommended": [
    {
      "category": "structure",
      "conditions": {
        "method": "synchrotron X-ray diffraction",
        "temperature_text": "293 K (COD CIF)"
      },
      "default": true,
      "id": "lattice-a/unspecified/hsu1997",
      "kind": "scalar",
      "name": "Lattice constant a (hexagonal setting)",
      "notes": "Same value as W. L. Bond quoted in weis1985 p. 193 (P-comp).",
      "property": "lattice-a",
      "provenance": {
        "locator": "COD 2101845",
        "source_id": "hsu1997",
        "status": "P-db",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "a",
      "unit": {
        "display": "Angstrom",
        "ucum": "Ao"
      },
      "value": 5.148,
      "variant": "unspecified"
    }
  ],
  "recommended_note": null,
  "spread": {
    "max": 5.1502,
    "min": 5.148,
    "n_records": 4,
    "note": "Range over all public records regardless of conditions; compare conditions before use.",
    "unit": "Ao"
  }
}