Magnetization measurements of single micron sized magnet by the high temperature superconductor micro SQUID magnetometer
| Project/Area Number |
20750101
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional materials chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKEDA Keiji The University of Tokyo, 大学院・理学系研究科, 特任助教 (10374654)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 高温超伝導マイクロSQUID / シアノ架橋金属錯体 / 磁化絶対量決定 / 高温超伝導体製マイクロSQUID / 強磁性体 / ダイポール近似計算 / 高温超伝導体マイクロSQUID / フェリ磁性体(3)磁束カウント法 |
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| Research Abstract |
The micro superconducting quantum interference device (micro-SQUID) based detection systems have successfully been adopted for investigations of the magnetic properties of individual micron- or nanometer-sized materials directly. Until then, only a low temperature superconductor type by the French group has been developed and has succeeded in measurements with a sensitivity of 10^4 μB in the magnetic field up to 20 kOe and below 6 K. We have developed the high temperature superconductor type micro-SQUID magnetometer which enables magnetization measurements of a single micron-sized crystal of molecular magnet with a sensitivity of 10^8 μB in the field up to 8 kOe and at 4-70 K and furthermore the estimation of the absolute quantity of magnetization for the first time.
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Report
(3 results)
Research Products
(24 results)
