{
  "id": "cond-mat/0110074",
  "version": "v1",
  "published": "2001-10-03T16:13:54.000Z",
  "updated": "2001-10-03T16:13:54.000Z",
  "title": "Multi-wall carbon nanotubes as quantum dots",
  "authors": [
    "M. R. Buitelaar",
    "A. Bachtold",
    "T. Nussbaumer",
    "M. Iqbal",
    "C. Schoenenberger"
  ],
  "comment": "10 pages, 4 figures",
  "doi": "10.1103/PhysRevLett.88.156801",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We have measured the differential conductance dI/dV of individual multi-wall carbon nanotubes (MWNT) of different lengths. A cross-over from wire-like (long tubes) to dot-like (short tubes) behavior is observed. dI/dV is dominated by random conductance fluctuations (UCF) in long MWNT devices (L=2...7 $\\mu m$), while Coulomb blockade and energy level quantization are observed in short ones (L=300 nm). The electron levels of short MWNT dots are nearly four-fold degenerate (including spin) and their evolution in magnetic field (Zeeman splitting) agrees with a g-factor of 2. In zero magnetic field the sequential filling of states evolves with spin S according to S=0 -> 1/2 -> 0... In addition, a Kondo enhancement of the conductance is observed when the number of electrons on the tube is odd.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2001-10-03T16:13:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum dots",
      "individual multi-wall carbon nanotubes",
      "energy level quantization",
      "zero magnetic field",
      "random conductance fluctuations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}