{
  "annotation_id": "a2848ffc-69ac-46b3-8791-56963764b72f",
  "date_created": "2026-03-02T18:01:18.384000Z",
  "date_modified": "2026-03-02T18:01:18.384000Z",
  "file_hash": "90bb75b3c1a75fb851e28912ce8e09553cc0ea70373c7c3c182972780aca583d",
  "private": false,
  "record": {
    "abstract": "The possibility of a solid state electron electric dipole moment (EDM)\nexperiment based on Gadolinium Iron Garnet (GdIG) is investigated. GdIG appears\nto exhibit superparamagnetism and this effect can be used to enhance the\nelectric-field-induced EDM signal at relatively a high temperatures, as\ncompared to a simple paramagnetic system such as Gadolinium Gallium Garnet. The\nsensitivity of a GdIG based experiment might be large enough that an\nimprovement by over three orders of magnitude, compared to the existing\nelectron EDM limit, could be obtained at a modest temperature of 4 K, assuming\nthat the superparamagnetic effect is not suppressed at this temperature, and\nthat the spin relaxation time remains sufficiently rapid.",
    "arxiv_id": "physics/0701198",
    "authors": [
      "Steve K. Lamoreaux"
    ],
    "categories": [
      "physics.atom-ph",
      "cond-mat.mtrl-sci",
      "hep-ex"
    ],
    "title": "Gadolinium Iron Garnet as a Solid State Material for an Electron   Electric Dipole Moment Search",
    "url": "https://arxiv.org/abs/physics/0701198"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7c2a334c-0856-43df-9c4c-ed04183a88d8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}