{
  "id": "0807.2319",
  "version": "v1",
  "published": "2008-07-15T08:01:09.000Z",
  "updated": "2008-07-15T08:01:09.000Z",
  "title": "Direct Observation of Local Magnetic Field Generated by Micromagnet",
  "authors": [
    "Shinji Watanabe",
    "Susumu Sasaki",
    "Shinya Sato",
    "Naoki Isogai",
    "Yoshinori Matsumoto"
  ],
  "comment": "3 pages, 3 figures",
  "journal": "Appl. Phys. Lett. 92, 25316 (2008)",
  "doi": "10.1063/1.2944144",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Using standard nuclear magnetic resonance (NMR) technique and a well-fabricated sample, we have succeeded in directly observing local magnetic field generated by a micro-magnet Ni45Fe55 (the thickness of 400-nm) which was sputtered on an Al layer of 20-nm thickness. Improved sensitivity of our NMR technique enabled us to clearly observe Al-NMR signals, which are confirmed to come from Al nuclei in the 20-nm layers. From the analysis of the Al-NMR spectra, the local magnetic field was found to be +0.17+-0.02 (-0.20+-0.01) Tesla, the sign of which is consistent with the geometry that the external magnetic field was applied perpendicular (parallel) to the Al layer. The present study gives a potential key element toward realizing higher resolution in magnetic resonance imaging (MRI).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-07-15T08:01:09.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "76.60.Pc",
      "75.50.Bb"
    ],
    "keywords": [
      "direct observation",
      "micromagnet",
      "standard nuclear magnetic resonance",
      "directly observing local magnetic field"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Applied Physics Letters",
      "year": 2008,
      "month": "Jun",
      "volume": 92,
      "number": 25,
      "pages": 253116
    },
    "note": {
      "typesetting": "TeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008ApPhL..92y3116W"
    }
  }
}