Development of tunneling junction refrigerator with ferromagnetic effect
Project/Area Number |
25286046
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Applied materials
|
Research Institution | National Institute of Advanced Industrial Science and Technology |
Principal Investigator |
Kashiwaya Satoshi 国立研究開発法人産業技術総合研究所, 電子光技術研究部門, 首席研究員 (40356770)
|
Co-Investigator(Kenkyū-buntansha) |
Matsuda Kenichi 日本大学, 理工学部, 准教授 (80360931)
Kawabata Shiro 国立研究開発法人産業技術総合研究所, 電子光技術部門, 主任研究員 (30356852)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2013: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
Keywords | 固体冷凍器 / トンネル接合 / 固体冷凍機 |
Outline of Final Research Achievements |
We develop a superconducting-normal metal-superconductor tunneling junction refrigerator of a suspended normal-metal type for cooling of high sensitive sensors working at ultralow temperature. The performance of the refrigerator is evaluated by comparing experimental conductance with numerical results of a theoretical formulation. The lowest temperature of 0.093 K at a bath temperature of 0.334 K indicates the successful operation of the refrigeration. The maximum cooling power of the present refrigerator estimated based on the non-equilibrium stationary state model is 213 pW at the junction area of 40 x 7 m2.
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Report
(4 results)
Research Products
(13 results)