{
  "id": "1406.4981",
  "version": "v1",
  "published": "2014-06-19T08:38:40.000Z",
  "updated": "2014-06-19T08:38:40.000Z",
  "title": "Observation of the band structures of defect magnonic crystals",
  "authors": [
    "Kai Di",
    "Vanessa Li Zhang",
    "Meng Hau Kuok",
    "Hock Siah Lim",
    "Ser Choon Ng",
    "Kulothungasagaran Narayanapillai",
    "Hyunsoo Yang"
  ],
  "comment": "13 pages, 5 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.dis-nn"
  ],
  "abstract": "Using Brillouin spectroscopy, the first observation has been made of the band structures of nanostructured defect magnonic crystals. The samples are otherwise one-dimensional periodic arrays of equal-width Ni80Fe20 and cobalt nanostripes, where the defects are stripes of a different width. A dispersionless defect branch emerges within the bandgap with a frequency tunable by varying the defect stripe width, while the other branches observed are similar to those of a defect-free crystal. Micromagnetic and finite-element simulations performed unveil additional tiny bandgaps and the frequency-dependent localization of the defect mode in the vicinity of the defects.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-06-19T08:38:40.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.30.Ds",
      "75.40.Gb",
      "78.35.+c",
      "78.67.Pt"
    ],
    "keywords": [
      "defect magnonic crystals",
      "band structures",
      "observation",
      "performed unveil additional tiny bandgaps",
      "simulations performed unveil additional tiny"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.90.060405",
      "journal": "Physical Review B",
      "year": 2014,
      "month": "Aug",
      "volume": 90,
      "number": 6,
      "pages": "060405"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvB..90f0405D"
    }
  }
}