Direct Observation of Local Magnetic Field Generated by Micromagnet
| dc.creator | Watanabe, Shinji | |
| dc.creator | Sasaki, Susumu | |
| dc.creator | Sato, Shinya | |
| dc.creator | Isogai, Naoki | |
| dc.creator | Matsumoto, Yoshinori | |
| dc.date | 2008-07-15 | |
| dc.date.accessioned | 2026-07-07T09:50:26Z | |
| dc.date.available | 2026-07-07T09:50:26Z | |
| dc.description | 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). | |
| dc.description | 3 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0807.2319 | |
| dc.identifier | http://arxiv.org/abs/0807.2319 | |
| dc.identifier | Appl. Phys. Lett. 92, 25316 (2008) | |
| dc.identifier | doi:10.1063/1.2944144 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/164940 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Direct Observation of Local Magnetic Field Generated by Micromagnet | |
| dc.type | text |