Development of a superconducting nanobridge diode based on the ratchet behavior due to the shape effect and its application
| Project/Area Number |
23360152
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Meijo University (2012-2013)
Nagoya University (2011) |
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Principal Investigator |
INOUE Masumi 名城大学, 理工学部, 教授 (00203258)
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| Co-Investigator(Renkei-kenkyūsha) |
AKAIKE Hiroyuki 名古屋大学, 大学院・工学研究科, 准教授 (20273287)
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| Project Period (FY) |
2011-11-18 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 高温超伝導体 / ナノブリッジ / 形状効果 / ラチェット / ダイオード / ヒステリシス |
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| Research Abstract |
We studied on the superconducting diode utilizing the ratchet effect of asymmetrical high-temperature superconductor nanobridges, aiming at applications such as bias current supplies for superconducting circuits. Single nanobridges with critical current around ten milliamperes and 9% modulation of the critical current by the applied magnetic field have been obtained. Dependence of the bridge characteristics on the relative position of the bridge and wiring and hysteretic properties of SQUIDs composed of asymmetrical nanobridges are useful information for discussing the physics of these devices. Analysis of the properties by numerical calculation showed the position dependence of vortices around the rectangular hole in a superconducting film. It was understood as the difference of the potential barrier due to the difference of the current distribution.
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Report
(4 results)
Research Products
(35 results)
