{
  "id": "1111.4803",
  "version": "v1",
  "published": "2011-11-21T09:53:02.000Z",
  "updated": "2011-11-21T09:53:02.000Z",
  "title": "Frequency dependent transport through a spin chain",
  "authors": [
    "Kevin A. van Hoogdalem",
    "Daniel Loss"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Motivated by potential applications in spintronics, we study frequency dependent spin transport in nonitinerant one-dimensional spin chains. We propose a system that behaves as a capacitor for the spin degree of freedom. It consists of a spin chain with two impurities a distance $d$ apart. We find that at low energy (frequency) the impurities flow to strong coupling, thereby effectively cutting the chain into three parts, with the middle island containing a discrete number of spin excitations. At finite frequency spin transport through the system increases. We find a strong dependence of the finite frequency characteristics both on the anisotropy of the spin chain and the applied magnetic field. We propose a method to measure the finite-frequency conductance in this system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-11-21T09:53:02.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.10.Jm",
      "75.10.Pq",
      "75.30.Ds",
      "75.76.+j"
    ],
    "keywords": [
      "frequency dependent transport",
      "study frequency dependent spin transport",
      "finite frequency spin transport",
      "nonitinerant one-dimensional spin chains",
      "finite frequency characteristics"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.85.054413",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Feb",
      "volume": 85,
      "number": 5,
      "pages": "054413"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvB..85e4413V"
    }
  }
}