{
  "id": "0910.2833",
  "version": "v1",
  "published": "2009-10-15T10:33:44.000Z",
  "updated": "2009-10-15T10:33:44.000Z",
  "title": "Magnetoresistance in Dilute $p$-Si/SiGe in Parallel and Tilted Magnetic Fields",
  "authors": [
    "I. L. Drichko",
    "I. Yu. Smirnov",
    "A. V. Suslov",
    "O. A. Mironov",
    "D. R. Leadley"
  ],
  "comment": "4 pages, 6 figs, to appear in Annalen der Physik",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report the results of an experimental study of the magnetoresistance $\\rho_{xx}$ and $\\rho_{xy}$ in two samples of $p$-Si/SiGe with low carrier concentrations $p$=8.2$\\times10^{10}$ cm$^{-2}$ and $p$=2$\\times10^{11}$ cm$^{-2}$. The research was performed in the temperature range of 0.3-2 K and in the magnetic fields of up to 18 T, parallel or tilted with respect to the two-dimensional (2D) channel plane. The large in-plane magnetoresistance can be explained by the influence of the \\textit{in-plane} magnetic field on the orbital motion of the charge carriers in the quasi-2D system. The measurements of $\\rho_{xx}$ and $\\rho_{xy}$ in the tilted magnetic field showed that the anomaly in $\\rho_{xx}$, observed at filling factor $\\nu$=3/2 is practically nonexistent in the conductivity $\\sigma_{xx}$. The anomaly in $\\sigma_{xx}$ at $\\nu$=2 might be explained by overlapping of the levels with different spins 0$\\uparrow$ and 1$\\downarrow$ when the tilt angle of the applied magnetic field is changed. The dependence of g-factor $g^*(\\Theta)/g^*(0^0)$ on the tilt angle $\\Theta$ was determined.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-10-15T10:33:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "tilted magnetic field",
      "tilt angle",
      "large in-plane magnetoresistance",
      "low carrier concentrations",
      "orbital motion"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1002/andp.200910380",
      "journal": "Annalen der Physik",
      "year": 2009,
      "month": "Dec",
      "volume": 521,
      "number": 12,
      "pages": 939
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009AnP...521..939D"
    }
  }
}