{
  "id": "2008.08421",
  "version": "v1",
  "published": "2020-08-19T13:19:54.000Z",
  "updated": "2020-08-19T13:19:54.000Z",
  "title": "Adjustable quantum interference oscillations in Sb-doped Bi2Se3 topological insulator nanoribbons",
  "authors": [
    "Hong-Seok Kim",
    "Tae-Ha Hwang",
    "Nam-Hee Kim",
    "Yasen Hou",
    "Dong Yu",
    "H. -S. Sim",
    "Yong-Joo Doh"
  ],
  "comment": "22 pages, 3 figures for main text",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Topological insulator (TI) nanoribbons (NRs) provide a unique platform for investigating quantum interference oscillations combined with topological surface states. One-dimensional subbands formed along the perimeter of a TI NR can be modulated by an axial magnetic field, exhibiting Aharonov-Bohm (AB) and Altshuler-Aronov-Spivak (AAS) oscillations of magnetoconductance (MC). Using Sb-doped Bi2Se3 TI NRs, we found that the relative amplitudes of the two quantum oscillations can be tuned by varying the channel length, exhibiting crossover from quasi-ballistic to diffusive transport regimes. The AB and AAS oscillations were discernible even for a 70 micrometer long channel, while only the AB oscillations were observed for a short channel. Analyses based on ensemble-averaged fast Fourier transform of MC curves revealed exponential temperature dependences of the AB and AAS oscillations, from which the circumferential phase-coherence length and thermal length were obtained. Our observations indicate that the channel length in a TI NR can be a useful control knob for tailored quantum interference oscillations, especially for developing topological hybrid quantum devices.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-08-19T13:19:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "sb-doped bi2se3 topological insulator nanoribbons",
      "adjustable quantum interference oscillations",
      "topological hybrid quantum devices",
      "curves revealed exponential temperature",
      "revealed exponential temperature dependences"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}