{
  "id": "2305.14923",
  "version": "v1",
  "published": "2023-05-24T09:09:33.000Z",
  "updated": "2023-05-24T09:09:33.000Z",
  "title": "Faraday rotation and transmittance as markers of topological phase transitions in 2D materials",
  "authors": [
    "M. Calixto",
    "A. Mayorgas",
    "N. A. Cordero",
    "E. Romera",
    "O. Castaños"
  ],
  "comment": "15 pages, 11 figures, including supplemental material with 5 pages and 4 figures, 3 animated gifs",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We analyze the magneto-optical conductivity (and related magnitudes like transmittance and Faraday rotation of the irradiated polarized light) of some elemental two-dimensional Dirac materials of group IV (graphene analogues, buckled honeycomb lattices, like silicene, germanene, stannane, etc.), group V (phosphorene), and zincblende heterostructures (like HgTe/CdTe quantum wells) near the Dirac and gamma points, under out-of-plane magnetic and electric fields, to characterize topological-band insulator phase transitions and their critical points. We provide plots of the Faraday angle and transmittance as a function of the polarized light frequency, for different external electric and magnetic fields, chemical potential, HgTe layer thickness and temperature, to tune the material magneto-optical properties. We have shown that absortance/transmittance acquires extremal values at the critical point, where the Faraday angle changes sign, thus providing fine markers of the topological phase transition.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-05-24T09:09:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "topological phase transition",
      "faraday rotation",
      "2d materials",
      "elemental two-dimensional dirac materials",
      "characterize topological-band insulator phase transitions"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}