{
  "id": "1807.09876",
  "version": "v1",
  "published": "2018-07-25T21:54:06.000Z",
  "updated": "2018-07-25T21:54:06.000Z",
  "title": "Galvanomagnetic properties of the putative type-II Dirac semimetal PtTe$_2$",
  "authors": [
    "Orest Pavlosiuk",
    "Dariusz Kaczorowski"
  ],
  "comment": "11 pages, 7 figures; accepted for publication in Scientific Reports",
  "categories": [
    "cond-mat.mtrl-sci"
  ],
  "abstract": "Platinum ditelluride has recently been characterized, based on angle-resolved photoemission spectroscopy data and electronic band structure calculations, as a possible representative of type-II Dirac semimetals. Here, we report on the magnetotransport behavior (electrical resistivity, Hall effect) in this compound, investigated on high-quality single-crystalline specimens. The magnetoresistance (MR) of PtTe$_2$ is large (over $3000\\%$ at $T=1.8$ K in $B=9$ T) and unsaturated in strong fields in the entire temperature range studied. The MR isotherms obey a Kohler's type scaling with the exponent $m$ = 1.69, different from the case of ideal electron-hole compensation. In applied magnetic fields, the resistivity shows a low-temperature plateau, characteristic of topological semimetals. In strong fields, well-resolved Shubnikov - de Haas (SdH) oscillations with two principle frequencies were found, and their analysis yielded charge mobilities of the order of $10^3\\,\\rm{cm^2V^{-1}s^{-1}}$ and rather small effective masses of charge carriers, $0.11m_e$ and $0.21m_e$. However, the extracted Berry phases point to trivial character of the electronic bands involved in the SdH oscillations. The Hall effect data corroborated a multi-band character of the electrical conductivity in PtTe$_2$, with moderate charge compensation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-07-25T21:54:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "putative type-ii dirac semimetal ptte",
      "galvanomagnetic properties",
      "electronic band structure calculations",
      "hall effect",
      "strong fields"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}