{
  "id": "2206.07617",
  "version": "v1",
  "published": "2022-06-15T16:01:55.000Z",
  "updated": "2022-06-15T16:01:55.000Z",
  "title": "Circular polarization immunity of the cyclotron resonance photoconductivity in two-dimensional electron systems",
  "authors": [
    "Erwin Mönch",
    "Philipp Euringer",
    "Georg-Maximilian Hüttner",
    "Ivan A. Dmitriev",
    "Dieter Schuh",
    "Marina Marocko",
    "Jonathan Eroms",
    "Dominique Bougeard",
    "Dieter Weiss",
    "Sergey D. Ganichev"
  ],
  "comment": "21 pages, 20 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Studying the cyclotron resonance (CR)-induced photoconductivity in GaAs and HgTe two-dimensional electron structures, we observed an anomalous photoresponse for the CR-inactive geometry being of almost the same magnitude as the CR-active one. This observation conflicts with simultaneous transmission measurements and contradicts the conventional theory of CR which predicts no resonant response for the CR-inactive geometry. We provide a possible route to explain this fundamental failure of the conventional description of light-matter interaction and discuss a modified electron dynamics near strong impurities that may provide a local near-field coupling of the two helicity modes of the terahertz field at low temperatures. This should result in a CR-enhanced local absorption and, thus, CR photoconductivity for both magnetic field polarities.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-06-15T16:01:55.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-dimensional electron systems",
      "circular polarization immunity",
      "cyclotron resonance photoconductivity",
      "hgte two-dimensional electron structures",
      "cr-inactive geometry"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}