{
  "annotation_id": "31cb503f-a64f-437b-b5b4-df3f182144e3",
  "date_created": "2026-03-02T18:02:13.698000Z",
  "date_modified": "2026-03-02T18:02:13.698000Z",
  "file_hash": "a72b8d93199f4bca3bb09121335ab1ea75642c9ef8d5d4306b9c0c533aeb1756",
  "private": false,
  "record": {
    "abstract": "The achievement of three-dimensional atomic resolution magnetic resonance\nmicroscopy remains one of the main challenges in the visualization of\nbiological molecules. The prospects for single spin microscopy have come\ntantalizingly close due to the recent developments in sensitive\ninstrumentation. Despite the single spin detection capability in systems of\nspatially well-isolated spins, the challenge that remains is the creation of\nconditions in space where only a single spin is resonant and detected in the\npresence of other spins in its natural dense spin environment. We present a\nnanomagnetic planar design where a localized Angstrom-scale point in\nthree-dimensional space is created above the nanostructure with a non-zero\nminimum of the magnetic field magnitude. The design thereby represents a\nmagnetic resonance microscopy lens where potentially only a single spin located\nin the focus spot of the structure is resonant. Despite the presence of other\nspins in the Angstrom-scale vicinity of the resonant spin, the high gradient\nmagnetic field of the lens renders those spins inactive in the detection\nprocess.",
    "arxiv_id": "quant-ph/0412217",
    "authors": [
      "Mladen Barbic",
      "Axel Scherer"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1021/nl0501260",
    "title": "Nanomagnetic Planar Magnetic Resonance Microscopy Lens",
    "url": "https://arxiv.org/abs/quant-ph/0412217"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1f176811-c2ff-4040-a458-844172d7eb63",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}