atomic unit of electric field gradient

{
  "id": "NISTu260",
  "unitsml_id": "u:atomic_unit_of_electric_field_gradient",
  "name": "atomic unit of electric field gradient",
  "names": [
    {
      "value": "atomic unit of electric field gradient",
      "lang": "en"
    }
  ],
  "symbols": {
    "unicode": "𝐸ₕ/𝑒𝑎₀²",
    "ascii": "E_h*(e*a_0^2)",
    "html": "<i>E</i><sub>h</sub>/<i>ea</i><sub>0</sub><sup>2</sup>",
    "latex": "\\ensuremath{\\mathit{E}_{h}/\\mathit{\\e}\\mathit{a}_0^2}",
    "id": "E_h*(e*a_0^2)",
    "mathml": "<mrow><msub><mi mathvariant='italic'>E</mi><mi mathvariant='normal'>h</mi></msub><mo>/</mo><mi mathvariant='italic'>e</mi><msup><msub><mi mathvariant='italic'>a</mi><mn>0</mn></msub><mn>2</mn></msup></mrow>"
  },
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTu260"
    },
    {
      "type": "unitsml",
      "id": "u:atomic_unit_of_electric_field_gradient"
    }
  ],
  "references": [],
  "short": "atomic_unit_of_electric_field_gradient",
  "root": true,
  "composite": false,
  "quantities": [
    {
      "id": "NISTq165",
      "name": "electric field gradient",
      "type": "derived"
    }
  ],
  "dimension": {
    "id": "NISTd74",
    "name": "electric field gradient",
    "expression": "M·T-3·I-1",
    "components": [
      {
        "key": "mass",
        "symbol": "M",
        "power": 1
      },
      {
        "key": "time",
        "symbol": "T",
        "power": -3
      },
      {
        "key": "electric_current",
        "symbol": "I",
        "power": -1
      }
    ],
    "dimensionless": false
  },
  "scale": {
    "id": "continuous_ratio",
    "name": "continuous ratio scale"
  },
  "systems": [
    {
      "id": "non-SI_not_acceptable",
      "name": "non-SI and not acceptable",
      "short": "nonsi-unacceptable",
      "acceptable": false
    }
  ],
  "root_units": null
}