{
  "id": "1109.6137",
  "version": "v2",
  "published": "2011-09-28T09:18:35.000Z",
  "updated": "2012-02-27T14:35:59.000Z",
  "title": "Time-reversal invariant realization of the Weyl semimetal phase",
  "authors": [
    "Gábor B. Halász",
    "Leon Balents"
  ],
  "comment": "9 pages, 5 figures, published version with infinitesimal changes",
  "journal": "Phys. Rev. B 85, 035103 (2012)",
  "doi": "10.1103/PhysRevB.85.035103",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We propose a realization of the Weyl semimetal phase that is invariant under time reversal and occurs due to broken inversion symmetry. We consider both a simple superlattice model and a more realistic tight-binding model describing an experimentally reasonable HgTe/CdTe multilayer structure. The two models have the same underlying symmetry, therefore their low-energy features are equivalent. We find a Weyl semimetal phase between the normal insulator and the topological insulator phases that exists for a finite range of the system parameters and exhibits a finite number of Weyl points with robust band touching at the Fermi level. This phase is experimentally characterized by a strong conductivity anisotropy and topological surface states. The principal conductivities change in a complementary fashion as the system parameters are varied, and the surface states only exist in a region of momentum space that is determined by the positions of the Weyl points.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-02-27T14:35:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.65.Vf",
      "73.21.Cd",
      "73.20.-r"
    ],
    "keywords": [
      "weyl semimetal phase",
      "time-reversal invariant realization",
      "surface states",
      "weyl points",
      "system parameters"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Jan",
      "volume": 85,
      "number": 3,
      "pages": "035103"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvB..85c5103H"
    }
  }
}