{
  "id": "1501.04828",
  "version": "v1",
  "published": "2015-01-20T14:49:07.000Z",
  "updated": "2015-01-20T14:49:07.000Z",
  "title": "Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator",
  "authors": [
    "Zhenhua Qiao",
    "Wei Ren",
    "Hua Chen",
    "L. Bellaiche",
    "Zhenyu Zhang",
    "A. H. MacDonald",
    "Qian Niu"
  ],
  "comment": "5pages, 5 figures",
  "journal": "PRL 112, 116404 (2014)",
  "doi": "10.1103/PhysRevLett.112.116404",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We propose realizing the quantum anomalous Hall effect by proximity coupling graphene to an antiferromagnetic insulator that provides both broken time-reversal symmetry and spin-orbit coupling. We illustrate our idea by performing ab initio calculations for graphene adsorbed on the (111) surface of BiFeO3. In this case, we find that the proximity-induced exchange field in graphene is about 70 meV, and that a topologically nontrivial band gap is opened by Rashba spin-orbit coupling. The size of the gap depends on the separation between the graphene and the thin film substrate, which can be tuned experimentally by applying external pressure.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-01-20T14:49:07.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum anomalous hall effect",
      "graphene proximity",
      "antiferromagnetic insulator",
      "broken time-reversal symmetry",
      "performing ab initio calculations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}