{
  "id": "1503.08229",
  "version": "v1",
  "published": "2015-03-27T21:00:14.000Z",
  "updated": "2015-03-27T21:00:14.000Z",
  "title": "Spin-Supercurrent and Phase-Tunable Triplet Cooper Pairs via Magnetic Insulators",
  "authors": [
    "Ingvild Gomperud",
    "Jacob Linder"
  ],
  "comment": "7 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We demonstrate theoretically that a dissipationless spin-current can flow a long distance through a diffusive normal metal by using superconductors interfaced with magnetic insulators. The magnitude of this spin-supercurrent is controlled via the magnetization orientation of the magnetic insulators. The spin-supercurrent obtained in this way is conserved in the normal metal just like the charge-current and interestingly has a term which is independent of the superconducting phase difference. The quantum state of the system can be switched between 0 and $\\pi$ by reversing the insulators from a parallel to antiparallel configuration with an external field. We show that the spin-current is carried through the normal metal by superconducting triplet (odd-frequency) correlations and that the superconducting phase difference can be used to enhance these, leaving clear spectroscopic fingerprints in the density of states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-03-27T21:00:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "phase-tunable triplet cooper pairs",
      "magnetic insulators",
      "spin-supercurrent",
      "superconducting phase difference",
      "leaving clear spectroscopic fingerprints"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}