High-resolution magnetic measurement for superconducting/magnetic materials using a STM-SQUID hybrid microscope

使用 STM-SQUID 混合显微镜对超导/磁性材料进行高分辨率磁性测量

• 批准号: 23560425
• 负责人: HAYASHI Tadayuki
• 金额: $ 3.33万
• 依托单位: Sendai National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560425/
• 关键词: 走査プローブ顕微鏡; 走査トンネル顕微鏡; SQUID顕微鏡; 超伝導材料・素子; 磁性材料・素子

We have developed a high Tc (HTS) STM-SQUID microscope for cooled samples including HTS materials, magnetic materials, etc. A high-permeability probe also performs as an STM tip. This STM-SQUID hybrid microscope can be used to observe the topography of a sample surface and the magnetic image at the same time without destroying the magnetic probe by using STM feedback control.We have also developed STM-SQUID microscope with fine piezo stage. Both low Tc (LTS) SQUID and HTS SQUID can be used as a magnetic sensor. A magnetic image of fine dot structure made of superconducting film could be measured. In case of LTS SQUID, a niobium-based LTS DC SQUID magnetometer/gradiometer and a three-axis piezo stage are attached to a measurement rod inserted in liquid helium container. A high-permeability probe as both magnetic and STM tip is close to a sample.

我们开发了一种高 Tc (HTS) STM-SQUID 显微镜，用于冷却样品，包括 HTS 材料、磁性材料等。高磁导率探头也可用作 STM 尖端。这种STM-SQUID混合显微镜可以利用STM反馈控制，在不破坏磁探针的情况下同时观察样品表面形貌和磁图像。我们还开发了带有精细压电平台的STM-SQUID显微镜。低 Tc (LTS) SQUID 和 HTS SQUID 都可以用作磁传感器。可以测量由超导薄膜制成的精细点结构的磁图像。对于 LTS SQUID，铌基 LTS DC SQUID 磁力计/梯度计和三轴压电平台连接到插入液氦容器中的测量杆。高磁导率探头，因为磁性和 STM 尖端均靠近样品。

项目成果

High-resolution magnetic field measurement using an STM-SQUID

使用 STM-SQUID 进行高分辨率磁场测量

• DOI: 10.1016/j.phpro.2012.06.163
• 发表时间: 2012
• 期刊: Physics Procedia
• 作者: N. Watanabe;Y. Miyato;M. Tachiki;T. Hayashi;D. He;H. Itozaki
• 通讯作者: H. Itozaki

Evaluation of a STM-SQUID probe microscope

STM-SQUID 探针显微镜的评估

• DOI: 10.1109/tasc.2010.2086033
• 发表时间: 2011
• 期刊: IEEE Transactions on Applied Superconductivity
• 影响因子: 1.8
• 作者: N. Watanabe;T. Hayashi;M. Tachiki;D. He;H. Itozaki
• 通讯作者: H. Itozaki

Observation of Polycrystalline Solar Cell Using a Laser-SQUID Microscope

• DOI: 10.1109/tasc.2010.2086416
• 发表时间: 2011-06
• 期刊: IEEE Transactions on Applied Superconductivity
• 影响因子: 1.8
• 作者: Y. Nakatani;T. Hayashi;H. Itozaki

Analysis on magnetic images of solar cells obtained by Laser SQUID microscopy

激光 SQUID 显微镜获得的太阳能电池磁图像分析

• 发表时间: 2012
• 作者: Cong Hao;Song Chen;Takeshi Yoshimura;立木実;K. Shimomura;Y. Miyato
• 通讯作者: Y. Miyato

Analysis on Magnetic Images of Solar Cell by Laser-SQUID Microscope

激光SQUID显微镜对太阳能电池磁图像的分析

• DOI: 10.1109/tasc.2012.2235516
• 发表时间: 2013
• 期刊: IEEE Transactions on Applied Superconductivity
• 影响因子: 1.8
• 作者: Y. Miyato;T. Hino;Y. Nakatani;T. Hayashi;H. Itozaki
• 通讯作者: H. Itozaki