{
  "id": "1912.05981",
  "version": "v1",
  "published": "2019-12-12T14:26:30.000Z",
  "updated": "2019-12-12T14:26:30.000Z",
  "title": "Competition of trivial and topological phases in patterned graphene based heterostructures",
  "authors": [
    "Zoltán Tajkov",
    "László Oroszlány",
    "József Cserti",
    "János Koltai"
  ],
  "comment": "8 pages, 4 figures. Comments are welcomed",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We explore the impact of mechanical strain on the competition of topological and trivial gap generation mechanisms in patterned graphene based heterostructures. We focus on Kekul\\'e-O type distortion favoring a trivial phase and commensurate Kane-Mele type spin-orbit coupling germinating a topological phase. We derive a simple low-energy Dirac Hamiltonian incorporating the two gap promoting effects and include terms corresponding to uniaxial strain. The derived effective model explains previous ab initio results elucidating a simple physical picture. We show that while the trivial gap is sensitive to mechanical distortions the topological gap stays resilient.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-12-12T14:26:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "topological phase",
      "patterned graphene",
      "low-energy dirac hamiltonian incorporating",
      "kane-mele type spin-orbit coupling",
      "heterostructures"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}