{
  "alternatives": [
    "photoelastic-p/unspecified/andrushchak2009",
    "photoelastic-p/unspecified/mys2015-krupych2014",
    "photoelastic-p/unspecified/rodrigues2023",
    "photoelastic-p/unspecified/weis1985-avakyants1976",
    "photoelastic-p/unspecified/weis1985-coquin"
  ],
  "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": "photoelastic-p",
    "variant": "unspecified"
  },
  "recommended": null,
  "recommended_note": "No single recommended set: sources disagree (shown as a spread, not blended).",
  "spread": {
    "p11": {
      "max": -0.02,
      "min": -0.026,
      "n_records": 5
    },
    "p12": {
      "max": 0.09,
      "min": 0.06,
      "n_records": 5
    },
    "p13": {
      "max": 0.172,
      "min": 0.13,
      "n_records": 5
    },
    "p14": {
      "max": 0.057,
      "min": -0.083,
      "n_records": 5
    },
    "p31": {
      "max": 0.179,
      "min": 0.141,
      "n_records": 5
    },
    "p33": {
      "max": 0.141,
      "min": 0.07,
      "n_records": 5
    },
    "p41": {
      "max": 0.051,
      "min": -0.151,
      "n_records": 5
    },
    "p44": {
      "max": 0.146,
      "min": 0.12,
      "n_records": 5
    }
  }
}