{
  "id": "cond-mat/9903165",
  "version": "v1",
  "published": "1999-03-10T12:41:55.000Z",
  "updated": "1999-03-10T12:41:55.000Z",
  "title": "Raman scattering in a two-dimensional electron gas: Boltzmann equation approach",
  "authors": [
    "E. G. Mishchenko"
  ],
  "comment": "4 pages, 3 figures. to appear in Phys. Rev. B 59 (1999)",
  "journal": "Phys. Rev. B 59, 14892 (1999).",
  "doi": "10.1103/PhysRevB.59.14892",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "The inelastic light scattering in a 2-d electron gas is studied theoretically using the Boltzmann equation techniques. Electron-hole excitations produce the Raman spectrum essentially different from the one predicted for the 3-d case. In the clean limit it has the form of a strong non-symmetric resonance due to the square root singularity at the electron-hole frequency $\\omega = vk$ while in the opposite dirty limit the usual Lorentzian shape of the cross section is reestablished. The effects of electromagnetic field are considered self-consistently and the contribution from collective plasmon modes is found. It is shown that unlike 3-d metals where plasmon excitations are unobservable (because of very large required transfered frequencies), the two-dimensional electron system gives rise to a low-frequency ($\\omega \\propto k^{1/2}$) plasmon peak. A measurement of the width of this peak can provide data on the magnitude of the electron scattering rate.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-03-10T12:41:55.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-dimensional electron gas",
      "boltzmann equation approach",
      "raman scattering",
      "boltzmann equation techniques",
      "electron-hole excitations produce"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}