{
  "id": "1505.03277",
  "version": "v1",
  "published": "2015-05-13T08:47:35.000Z",
  "updated": "2015-05-13T08:47:35.000Z",
  "title": "Nexus and Dirac lines in topological materials",
  "authors": [
    "T. T. Heikkila",
    "G. E. Volovik"
  ],
  "comment": "6 pages, 2 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We consider the $Z_2$ topology of the Dirac lines -- lines of band contacts -- on example of graphite. Four lines (three with topological charge $N_1=1$ each and one with $N_1=-1$) merge together near the H-point and annihilate due to summation law $1+1+1-1=0$. The merging point is similar to the real-space nexus, the analog of Dirac monopole at which the $Z_2$ strings terminate.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-13T08:47:35.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dirac lines",
      "topological materials",
      "strings terminate",
      "summation law",
      "real-space nexus"
    ],
    "publication": {
      "doi": "10.1088/1367-2630/17/9/093019",
      "journal": "New Journal of Physics",
      "year": 2015,
      "month": "Sep",
      "volume": 17,
      "number": 9,
      "pages": "093019"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015NJPh...17i3019H"
    }
  }
}