2015 Fiscal Year Final Research Report
Trapping of superconducting microparticle using magnetic field
| Project/Area Number |
26610124
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | University of Toyama |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUSHIMA Fusakazu 富山大学, 大学院理工学研究部(理学), 教授 (40142236)
ASHIDA Masaaki 大阪大学, 基礎工学研究科, 教授 (60240818)
KUMAKURA Mitsutaka 福井大学, 工学(系)研究科(研究院), 准教授 (30324601)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 微粒子 / 超伝導 / 微細線構造 / レーザーアブレーション / ラゲールガウスビーム |
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| Outline of Final Research Achievements |
Superconducting submicron particles, having been produced by laser ablation of metal samples in superfluid helium, have been spatially trapped in a quadrupole magnetic field. The breakdown temperature of the trap can be attributed to the critical temperature Tc for these particles. We have measured the Tc of particles produced from indium and rhenium, which have been changed from the Tc for the bulk metal. Particle sizes have been measured by the electric microscope and they are mostly around submicron meter. We have also produced wire structures by the laser ablation of metals in superfluid helium. Their Tc measured from the temperature dependence of their resistance have been in good agreement with those of the particles.
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| Free Research Field |
量子エレクトロニクス
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