Development of new high-frequency nano-spin measurement technique

新型高频纳米自旋测量技术的开发

• 批准号: 24656197
• 负责人: ENDO YASUSHI
• 金额: $ 2.58万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656197/
• 关键词: 高周波計測; ナノスピン; プローブ顕微鏡; MFM探針; 高周波磁界計測; MFM用探針; 場のうなり; コプレーナウェーブガイド; GHｚ帯; ＭＦＭ用探針

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.

本研究报道了我们新提出的高频纳米自旋测量技术，即加热场型高频磁力显微镜。通过向CPW提供信号电流和向激励线圈提供参考电流来产生跳动场。信号电流固定在特定的ghz频率范围内，同时调整基准以产生频率接近悬臂共振频率的拍频。在微波励磁的作用下，在CPW表面上可以成功地观测到信号频率在ghz范围内的磁场梯度。磁场梯度在两个间隙附近最小，而在信号线中心附近最大。这些结果表明，针尖通过加热场与CPW的射频磁场近场密切相互作用，探索参考射频场可以以非常高的空间分辨率检测射频电路元件辐射的射频磁场分布。

项目成果

GHz Range Magnetic Field Measurement of a Coplanar Waveguide with a MFM Tip Exploiting a Beat Signal Between a CPW and an Exciting Coil

利用 CPW 和励磁线圈之间的拍频信号对具有 MFM 尖端的共面波导进行 GHz 范围磁场测量

• 发表时间: 2014
• 作者: Yasushi Endo;Masaki Onishi;Sho Muroga;Kaoru Arai;Kunio Yanagi;Yutaka Shimada;Masahiro Yamaguchi
• 通讯作者: Masahiro Yamaguchi

Development of micro magnetic field probe to evaluate near field on RFIC chip

开发微磁场探针来评估 RFIC 芯片上的近场

• 发表时间: 2014
• 作者: Yasushi Endo;Masahiro Yamaguchi;Yojiro Shigeta;Masaki Onishi;Kaoru Arai;Sho Muroga
• 通讯作者: Sho Muroga

Study of MFM for RF Field Detection with a CPW Producing a Beat Signal

利用 CPW 产生拍频信号进行射频场检测的 MFM 研究

• 发表时间: 2012
• 作者: Yasushi Endo;Masaaki Fukushima;Kaoru Arai;Kunio Yanagi;Yutaka Shimada;Masahiro Yamaguchi
• 通讯作者: Masahiro Yamaguchi

Study on the Measurement of Microscopic RF Field Distribution with a MFM Tip Exploiting a Beat Signal Between a CPW and an Exciting Coil

利用 CPW 和励磁线圈之间的拍频信号的 MFM 尖端测量微观射频场分布的研究

• 发表时间: 2014
• 期刊: IEICE Proceedings of EMC'14/Tokyo
• 作者: Yasushi Endo;Masaki Onishi;Masaaki Fukushima;Kaoru Arai;Kunio Yanagi;Yutaka Shimada;Masahiro Yamaguchi
• 通讯作者: Masahiro Yamaguchi

Measurement of Microscopic RF Field Distribution with a MFM Tip Exploiting a Beat Signal from a Coplanar Waveguide

利用 MFM 尖端利用共面波导的拍频信号测量微观射频场分布

• 发表时间: 2013
• 作者: Yasushi Endo;Masaaki Fukushima;Kaoru Arai;Kunio Yanagi;Yutaka Shimada;Masahiro Yamaguchi
• 通讯作者: Masahiro Yamaguchi