{
  "annotation_id": "fa5d098c-883b-4215-9a72-34595020e999",
  "date_created": "2026-03-02T18:02:51.630000Z",
  "date_modified": "2026-03-02T18:02:51.630000Z",
  "file_hash": "137816b8b0f975e07db9b13b54eb571668f35b3f95efaa1280cf734febd0a14b",
  "private": false,
  "record": {
    "abstract": "We report measurements of the microwave surface impedance of the borocarbide\nfamily of superconductors LnNi2B2C (Ln=Y, Er, Tm, Ho). The experiments enable\ndirect measurements of the superfluid density, and are particularly sensitive\nto the influence of magnetic pairbreaking.\n  In HoNi2B2C the antiferromagnetic transition is clearly observed at zero\nfield, and leads to a drastic reduction of the superfluid density, which\nrecovers at lower temperatures.\n  In ErNi2B2C the antiferromagnetic transition is not seen in zero field data.\nMagnetic effects are responsible for anomalies in the low temperature surface\nimpedance below approximately 4K in HoNi2B2C and TmNi2B2C. The temperature\ndependence of the microwave impedance disagrees with simple BCS calculations.",
    "arxiv_id": "supr-con/9504001",
    "authors": [
      "T. Jacobs",
      "Balam A. Willemsen",
      "S. Sridhar",
      "R. Nagarajan",
      "L. C. Gupta",
      "Z. Hossain",
      "Chandan Mazumdar",
      "P. C. Canfield",
      "B. K. Cho"
    ],
    "categories": [
      "supr-con",
      "cond-mat.supr-con"
    ],
    "doi": "10.1103/PhysRevB.52.R7022",
    "title": "Microwave Properties of Borocarbide Superconductors LnNi2B2C (Ln = Y,   Er, Tm, Ho)",
    "url": "https://arxiv.org/abs/supr-con/9504001"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a006dc40-46f1-4c20-ab10-4360307910f9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}