{
  "id": "cond-mat/0002256",
  "version": "v1",
  "published": "2000-02-16T20:14:31.000Z",
  "updated": "2000-02-16T20:14:31.000Z",
  "title": "Theoretical Perspectives on Spintronics and Spin-Polarized Transport",
  "authors": [
    "S. Das Sarma",
    "Jaroslav Fabian",
    "Xuedong Hu",
    "Igor Zutic"
  ],
  "comment": "6 pages, uses IEEEtran.sty, review paper to be presented at INTERMAG 2000, to be published in IEEE Transactions on Magnetics",
  "journal": "IEEE Trans. Magn. 36, 2821 (2000)",
  "doi": "10.1109/20.908600",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "Selected problems of fundamental importance for spintronics and spin-polarized transport are reviewed, some of them with a special emphasis on their applications in quantum computing and coherent control of quantum dynamics. The role of the solid-state environment in the decoherence of electron spins is discussed. In particular, the limiting effect of the spin-orbit interaction on spin relaxation of conduction electrons is carefully examined in the light of recent theoretical and experimental progress. Most of the proposed spintronic devices involve spin-polarized transport across interfaces in various hybrid structures. The specific example discussed here, of a magnetic semiconductor/superconductor interface, displays many intricacies which a complex spin-dependent interface introduces in the spin-polarized transport. It is proposed that pairs of entangled electrons in a superconductor (Cooper pairs) can be transfered to a non-superconducting region, and consequently separated for a transport study of the spin entanglement. Several important theoretical proposals for quantum computing are based on electronic and nuclear spin entanglement in a solid. Physical requirements for these proposals to be useful are discussed and some alternative views are presented. Finally, a recent discovery of optical control of nuclear spins in semiconductors is reviewed and placed in the context of a long-standing search for electronic control of nuclear dynamics.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2000-02-16T20:14:31.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin-polarized transport",
      "theoretical perspectives",
      "spintronic",
      "complex spin-dependent interface",
      "magnetic semiconductor/superconductor interface"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "AIP",
      "journal": "Comput. Sci. Eng."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}