{
  "id": "cond-mat/0512479",
  "version": "v1",
  "published": "2005-12-19T21:39:26.000Z",
  "updated": "2005-12-19T21:39:26.000Z",
  "title": "Multiphoton processes in microwave photoresistance of 2D electron system",
  "authors": [
    "M. A. Zudov",
    "R. R. Du",
    "L. N. Pfeiffer",
    "K. W. West"
  ],
  "comment": "4.5 pages, 3 figures",
  "journal": "Phys. Rev. B 73, 041303(R) (2006)",
  "doi": "10.1103/PhysRevB.73.041303",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We extend our studies of microwave photoresistance of ultra-high mobility two-dimensional electron system (2DES) into the high-intensity, non-linear regime employing both monochromatic and bichromatic radiation. Under high-intensity monochromatic radiation $\\omega$ we observe new zero-resistance states (ZRS) which correspond to rational values of $\\epsilon=\\omega/\\omega_C$ ($\\omega_C$ is the cyclotron frequency) and can be associated with multiphoton processes. %Formation of these rational ZRS is accompanied by a dramatic reconstruction of the photoresistance spectrum which reveals diminishing, narrowing, and phase reduction of the resistance peaks, as well as overall suppression of resistance at $\\epsilon<1/2$. Under bichromatic radiation $\\omega_1,\\omega_2$ we discover new resistance minimum, possibly a precursor of bichromatic ZRS, which seems to originate from a frequency mixing process, $\\omega_1+\\omega_2$. These findings indicate that multiphoton processes play important roles in the physics of non-equilibrium transport of microwave-driven 2DES, and suggest new directions for theoretical and experimental studies.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-12-19T21:39:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "2d electron system",
      "microwave photoresistance",
      "multiphoton processes play important roles",
      "ultra-high mobility two-dimensional electron system",
      "bichromatic radiation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}