{
  "id": "1411.0324",
  "version": "v1",
  "published": "2014-11-02T21:42:43.000Z",
  "updated": "2014-11-02T21:42:43.000Z",
  "title": "Geometrical effects in orbital magnetism",
  "authors": [
    "Yang Gao",
    "Shengyuan A. Yang",
    "Qian Niu"
  ],
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.stat-mech"
  ],
  "abstract": "Within the wave-packet semiclassical approach, the Bloch electron energy is derived to second order in the magnetic field and classified into gauge-invariant terms with clear physical meaning, yielding a fresh understanding of the complex behavior of orbital magnetism. The Berry curvature and quantum metric of the Bloch states give rise to a geometrical magnetic susceptibility, which can be dominant when bands are filled up to a small energy gap. There is also an energy polarization term, which can compete with the Peierls-Landau and Pauli magnetism on a Fermi surface. All these, and an additional Langevin susceptibility, can be calculated from each single band, leaving the Van Vleck susceptibility as the only term truly from interband coupling.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-11-02T21:42:43.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.10.Lp",
      "73.20.At",
      "73.22.-f",
      "75.20.-g"
    ],
    "keywords": [
      "orbital magnetism",
      "geometrical effects",
      "bloch electron energy",
      "small energy gap",
      "energy polarization term"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.91.214405",
      "journal": "Physical Review B",
      "year": 2015,
      "month": "Jun",
      "volume": 91,
      "number": 21,
      "pages": 214405
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015PhRvB..91u4405G"
    }
  }
}