{
  "id": "2106.00044",
  "version": "v1",
  "published": "2021-05-31T18:22:17.000Z",
  "updated": "2021-05-31T18:22:17.000Z",
  "title": "Dynamic polarization of electron spins in indirect band gap (In,Al)As/AlAs quantum dots in weak magnetic field: experiment and theory",
  "authors": [
    "T. S. Shamirzaev",
    "A. V. Shumilin",
    "D. S. Smirnov",
    "J. Rautert",
    "D. R. Yakovlev",
    "M. Bayer"
  ],
  "comment": "14 pages, 16 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "A novel spin orientation mechanism - dynamic electron spin polarization has been recently suggested in Phys. Rev. Lett. $\\mathbf{125}$, 156801 (2020). It takes place for unpolarized optical excitation in weak magnetic fields of the order of a few millitesla. In this paper we demonstrate experimentally and theoretically that the dynamic electron spin polarization degree changes sign as a function of time, strength of the applied magnetic field and its direction. The studies are performed on indirect band-gap (In,Al)As/AlAs quantum dots and their results are explained in the framework of a theoretical model developed for our experimental setting.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-05-31T18:22:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "weak magnetic field",
      "as/alas quantum dots",
      "indirect band gap",
      "spin polarization degree changes",
      "polarization degree changes sign"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}