2013 Fiscal Year Final Research Report
Development of new high-frequency nano-spin measurement technique
| Project/Area Number |
24656197
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Tohoku University |
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Principal Investigator |
ENDO YASUSHI 東北大学, 工学(系)研究科(研究院), 准教授 (50335379)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 高周波計測 / ナノスピン / プローブ顕微鏡 / MFM探針 |
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| Research Abstract |
This study reports our newly proposed high-frequency nano-spin measurement technique, that is, beating field typed high-frequency magnetic force microscope. The beating field is produced by supplying a signal current to the CPW and a reference current to an exciting coil. The signal current is fixed at a specific GHz-range frequency, while the reference is adjusted to produce a beat with a frequency near the cantilever resonance frequency. As the MFM tip is excited by the beat, the gradient of magnetic field can be successfully observed above the CPW surface for a GHz-range signal frequency. The gradient of magnetic field is minimized near the two gaps, but is maximized near the center of the signal line. These results demonstrate that the tip interacts closely with the RF magnetic near-field of the CPW through the beating field, and exploring a reference RF field can detect the distribution of RF magnetic fields radiated from a RF circuit component with a very high spatial resolution.
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[Presentation] MFM探針とうなり磁界を組み合わせた高周波磁界計測2012
Author(s)
遠藤恭, 福嶋正昭, 荒井薫, 柳邦雄, 島田寛, 山口正洋
Organizer
2012年第3回公開ワークショップ 高速・高品質な無線通信実現のためのICチップレベルの低ノイズ化技術～無線通信システム性能とICチップレベルEMC～
Place of Presentation
神戸大学(神戸市)
Year and Date
2012-12-04
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