{
  "annotation_id": "b8ea3d07-8eec-4366-a96b-577b4b4d0ac3",
  "date_created": "2026-03-02T18:00:56.227000Z",
  "date_modified": "2026-03-02T18:00:56.227000Z",
  "file_hash": "7ee483e2939296834fc210ff68d7e2cb4a66d122f2f98f38d776bffa8f8f514b",
  "private": false,
  "record": {
    "abstract": "We present an undergraduate lab that investigates weak localization in thin\nsilver films. The films prepared in our lab have thickness, $a$, between 60-200\n\\AA, a mesoscopic length scale. At low temperatures, the inelastic dephasing\nlength for electrons, $L_{\\phi}$, exceeds the thickness of the film ($L_{\\phi}\n\\gg a$), and the films are then quasi-2D in nature. In this situation, theory\npredicts specific corrections to the Drude conductivity due to coherent\ninterference between conducting electrons\u0027 wavefunctions, a macroscopically\nobservable effect known as weak localization. This correction can be destroyed\nwith the application of a magnetic field, and the resulting magnetoresistance\ncurve provides information about electron transport in the film. This lab is\nsuitable for Junior or Senior level students in an advanced undergraduate lab\ncourse.",
    "arxiv_id": "physics/0503071",
    "authors": [
      "A. D. Beyer",
      "M. Koesters",
      "K. G. Libbrecht",
      "E. D. Black"
    ],
    "categories": [
      "physics.ed-ph"
    ],
    "doi": "10.1119/1.2049284",
    "title": "Macroscopic coherence effects in a mesoscopic system: Weak localization   of thin silver films in an undergraduate lab",
    "url": "https://arxiv.org/abs/physics/0503071"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5cb62ab5-4e16-4fe6-92e5-b756452c22c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}