{
  "annotation_id": "16b09220-cef5-4d50-b207-066071f3e390",
  "date_created": "2026-03-02T18:00:32.609000Z",
  "date_modified": "2026-03-02T18:00:32.609000Z",
  "file_hash": "0e600870193d44a41f2295bc9c5ec7c9d526a4fdc7a2a84a37c40d2398da4b7c",
  "private": false,
  "record": {
    "abstract": "Sputtered Nb thin-film LC resonators for low frequencies at 0.5 MHz have been\nfabricated and tested in the temperature range 0.05--1 K in magnetic fields up\nto 30 mT. Their Q value increases towards decreasing temperature as sqrt(T) and\nreaches 10^3 at 0.05 K. As a function of magnetic field Q is unstable and\ndisplays variations up to 50%, which are reproducible from one field sweep to\nthe next. These instabilities are attributed to dielectric losses in the plasma\ndeposited SiO_2 insulation layer, since the thin-film coil alone reaches a Q \u003e\n10^5 at 0.05 K.",
    "arxiv_id": "physics/0012052",
    "authors": [
      "A. Finne",
      "L. Groenberg",
      "R. Blaauwgeers",
      "V. B. Eltsov",
      "G. Eska",
      "M. Krusius",
      "J. J. Ruohio",
      "R. Schanen",
      "I. Suni"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1063/1.1394179",
    "title": "Superconducting Nb-film LC resonator",
    "url": "https://arxiv.org/abs/physics/0012052"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "50b7bbd0-e243-45ba-b6b1-0c379f2ecf7e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}