{
  "id": "2003.10361",
  "version": "v1",
  "published": "2020-03-23T16:26:21.000Z",
  "updated": "2020-03-23T16:26:21.000Z",
  "title": "Nodal Semimetals: A Survey on Optical Conductivity",
  "authors": [
    "A. V. Pronin",
    "M. Dressel"
  ],
  "comment": "to appear in a special issue of pss(b) on topological materials",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Among different topological and related phases of condensed matter, nodal semimetals occupy a special place - the electronic band topology in these materials is related to three-dimensional bulk, rather than to surface, states. A great variety of different realizations of electronic band crossings (the nodes) leads to a plethora of different electronic properties, ranging from the chiral anomaly to solid-state realizations of a black-hole horizon. The different nodal phases have similar low-energy band structure and quasiparticle dynamics, which both can be accessed experimentally by a number of methods. Optical measurements with their large penetration depth and high energy resolution are ideally suited as such a bulk probe; especially at low energies where other spectroscopic methods often lack the required resolution. In this contribution, we review recent optical-conductivity studies of different nodal semimetals, discuss possible limitations of such measurements, and provide a comparison between the experimental results, simple theoretical models, and band-structure-based calculations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-03-23T16:26:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optical conductivity",
      "similar low-energy band structure",
      "large penetration depth",
      "nodal semimetals occupy",
      "electronic band crossings"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}