{
  "alternatives": [
    "piezo-strain-d/unspecified/weis1985-smithwelsh1971",
    "piezo-strain-d/unspecified/weis1985-warner1967",
    "piezo-strain-d/unspecified/weis1985-yamada1967"
  ],
  "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/"
    },
    "tensor": "piezo-strain-d",
    "variant": "unspecified"
  },
  "recommended": null,
  "recommended_note": "No single recommended set: sources disagree (shown as a spread, not blended).",
  "spread": {
    "d15": {
      "max": 74,
      "min": 68,
      "n_records": 3
    },
    "d22": {
      "max": 21,
      "min": 20.8,
      "n_records": 3
    },
    "d31": {
      "max": -0.85,
      "min": -1.0,
      "n_records": 3
    },
    "d33": {
      "max": 16,
      "min": 6.0,
      "n_records": 3
    }
  }
}