{
  "id": "1805.04950",
  "version": "v1",
  "published": "2018-05-13T21:20:02.000Z",
  "updated": "2018-05-13T21:20:02.000Z",
  "title": "Charge-tuneable biexciton complexes in monolayer WSe$_{2}$",
  "authors": [
    "Matteo Barbone",
    "Alejandro R. -P. Montblanch",
    "Dhiren M. Kara",
    "Carmen Palacios-Berraquero",
    "Alisson R. Cadore",
    "Domenico De Fazio",
    "Benjamin Pingault",
    "Elaheh Mostaani",
    "Han Li",
    "Bin Chen",
    "Kenji Watanabe",
    "Takashi Taniguchi",
    "Sefaattin Tongay",
    "Gang Wang",
    "Andrea C. Ferrari",
    "Mete Atatüre"
  ],
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci",
    "quant-ph"
  ],
  "abstract": "Multi-exciton states such as biexcitons, albeit theoretically predicted, have remained challenging to identify in atomically thin transition metal dichalcogenides so far. Here, we use excitation-power, electric-field and magnetic-field dependence of photoluminescence to report direct experimental evidence of two biexciton complexes in monolayer tungsten diselenide: the neutral and the negatively charged biexciton. We demonstrate bias-controlled switching between these two states, we determine their internal structure and we resolve a fine-structure splitting of 2.5 meV for the neutral biexciton. Our results unveil multi-particle exciton complexes in transition metal dichalcogenides and offer direct routes to their deterministic control in many-body quantum phenomena.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-05-13T21:20:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "charge-tuneable biexciton complexes",
      "monolayer wse",
      "results unveil multi-particle exciton complexes",
      "atomically thin transition metal dichalcogenides",
      "report direct experimental evidence"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}