{
  "id": "1305.0405",
  "version": "v2",
  "published": "2013-05-02T11:41:43.000Z",
  "updated": "2013-06-18T13:31:32.000Z",
  "title": "Currents and pseudomagnetic fields in strained graphene rings",
  "authors": [
    "D. Faria",
    "A. Latge",
    "S. E. Ulloa",
    "N. Sandler"
  ],
  "journal": "Phys. Rev. B 87, 241403(R) (2013)",
  "doi": "10.1103/PhysRevB.87.241403",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study the effects of strain on the electronic properties and persistent current characteristics of a graphene ring using the Dirac representation. For a slightly deformed graphene ring flake, one obtains sizable pseudomagnetic (gauge) fields that may effectively reduce or enhance locally the applied magnetic flux through the ring. Flux-induced persistent currents in a flat ring have full rotational symmetry throughout the structure; in contrast, we show that currents in the presence of a circularly symmetric deformation are strongly inhomogeneous, due to the underlying symmetries of graphene. This result illustrates the inherent competition between the `real' magnetic field and the `pseudo' field arising from strains, and suggest an alternative way to probe the strength and symmetries of pseudomagnetic fields on graphene systems.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-06-18T13:31:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.22.Pr",
      "73.23.Ra",
      "61.48.Gh",
      "73.23.-b"
    ],
    "keywords": [
      "strained graphene rings",
      "pseudomagnetic fields",
      "deformed graphene ring flake",
      "full rotational symmetry throughout",
      "persistent current characteristics"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Jun",
      "volume": 87,
      "number": 24,
      "pages": 241403
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..87x1403F"
    }
  }
}