{ "id": "2107.08365", "version": "v1", "published": "2021-07-18T04:55:04.000Z", "updated": "2021-07-18T04:55:04.000Z", "title": "Bilayer Quantum Hall States in an n-type Wide Tellurium Quantum Well", "authors": [ "Chang Niu", "Gang Qiu", "Yixiu Wang", "Mengwei Si", "Wenzhuo Wu", "Peide D. Ye" ], "comment": "Submitted to Nano Letters", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "Tellurium (Te) is a narrow bandgap semiconductor with a unique chiral crystal structure. The topological nature of electrons in the Te conduction band can be studied by realizing n-type doping using atomic layer deposition (ALD) technique on two-dimensional (2D) Te film. In this work, we fabricated and measured the double-gated n-type Te Hall-bar devices, which can operate as two separate or coupled electron layers controlled by the top gate and back gate. Profound Shubnikov-de Haas (SdH) oscillations are observed in both top and bottom electron layers. Landau level hybridization between two layers, compound and charge-transferable bilayer quantum Hall states at filling factor 4, 6, and 8 are analyzed. Our work opens the door for the study of Weyl physics in coupled bilayer systems of 2D materials.", "revisions": [ { "version": "v1", "updated": "2021-07-18T04:55:04.000Z" } ], "analyses": { "keywords": [ "bilayer quantum hall states", "n-type wide tellurium quantum", "n-type te hall-bar devices", "electron layers" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }