2009 Fiscal Year Final Research Report
Foundation of MgB2 superconducting junction technology
| Project/Area Number |
18080003
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
NAITO Michio Tokyo University of Agriculture and Technology, 大学院・共生科学技術研究院, 教授 (40155643)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 超伝導材料・素子 / 低消費電力・高エネルギー密度 / テラヘルツ / 赤外材料・素子 / トンネル現象 / 単一光子検出 |
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| Research Abstract |
It has been predicted that the global helium resources will beexhausted in the 21st century. In the end of the 21st century, all of currentsuperconducting electronics applications relying on niobium (Tc ~ 9 K) will be ended. Thisresearch project has been performed to develop the Josephson junction fabricationtechnology using recently discovered MgB2 with Tc = 40 K, aiming at establishing thefoundation of superconducting electronics with MgB2 operating above 20 K (hydrogenboiling temperature) as “post-niobium" superconducting electronics. In this project, thegrowth techniques of high-quality MgB2 films have been developed either bylow-temperature molecular beam epitaxy or by high-temperature chemical vapordeposition. The fabrication of all MgB2 Josephson junctions has also been attemptedusing various barrier materials.
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