| Project/Area Number |
20760178
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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 |
Intelligent mechanics/Mechanical systems
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
YUAN Jie National Institute for Materials Science, ナノテクノロジー基盤萌芽ラボ, NIMSポスドク研究員 (70469790)
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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 |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | マイクロ・ナノメカトロニクス / ナノギア / ジョセフソン磁束 / Qubit / 計算機システム / 超伝導材料・素子 / マイクロ・ナノデバイス / スピンエレクトロニクス / 分子モーター / マイクロナノメカトロニクス |
|---|
| Research Abstract |
We have demonstrated the operation of a deterministic fluxon ratchet in a stack of 30 intrinsic Bi2Sr2CaCu2O8 Josephson junctions with the shape of a gear including 20 asymmetric teeth. It produces a pronounced rectified voltage at a 12 GHz drive frequency. As the plasma frequency can be as high as hundreds of GHz, the rectification frequencies as well as the operation frequencies of the superconducting gears can be up to sub-THz regime. Quite recently, we have also successfully fabricated electron-doped superconducting films Pr0.9LaCe0.1CuO4 (PLCCO) and investigated their transport properties for their applications in untouched gears. All the results suggest that the proposed untouched nano-gear can be realized with unique properties, though more efforts should be taken.
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