{
  "id": "2208.14969",
  "version": "v1",
  "published": "2022-08-31T17:10:01.000Z",
  "updated": "2022-08-31T17:10:01.000Z",
  "title": "Effect of parallel magnetic field on Klein tunneling in $pn$ and $pnp$ graphene trilayer junctions",
  "authors": [
    "Abderrahim El Mouhafid",
    "Ahmed Jellal"
  ],
  "comment": "7 pages, 10 figures, two-column",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "The effect of a parallel magnetic field $B$ and a potential substrate on the transmission, conductivity, and Fano factor of a biased ABC-stacked $pn$ and $pnp$ trilayer graphene junction (ABC-TLG) is investigated theoretically at low energy. We discovered that, in the presence of a high magnetic field $B=1400$T, the ABC-TLG can exhibit new Klein tunneling at two new incidence $k_y$ values, in addition to the usual value of $k_y=0$ and whatever the energy value is. Indeed, the transmission of ABC-TLG via $ pn $ and $ pnp $ junctions is transformed into a three-separate transmission of single-like graphene (SLG), with Klein tunneling appearing at $k_y=0$ and $k_y=\\pm\\kappa$ ($\\kappa$ is highly dependent on $B$). Furthermore, the conductivity $\\sigma$ and Fano factor $F$ behave similarly to SLG, with ABC-TLG having the lowest $\\sigma=3g_0/\\pi$ and highest $F=1/3$ at $B=1400$T and $\\sigma_{\\text{TLG}}=3\\sigma_{\\text{SLG}}$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-08-31T17:10:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "parallel magnetic field",
      "graphene trilayer junctions",
      "klein tunneling",
      "fano factor",
      "trilayer graphene junction"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}