High-resolution magnetic measurement for superconducting/magnetic materials using a STM-SQUID hybrid microscope
| Project/Area Number |
23560425
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Sendai National College of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TACHIKI Minoru 物質・材料研究機構, 超伝導物性ユニット, 主任研究員 (50318838)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 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 |
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| Research Abstract |
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.
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Report
(4 results)
Research Products
(30 results)
