Paper Abstract and Keywords |
Presentation |
2010-10-19 13:15
The Effect of NbN or MgB2 Ground Planes on Magnetic Flux Trapping Naoki Mitamura, Naoto Naito, Hiroyuki Akaike, Akira Fujimaki (Nagoya Univ.), Yoshihiro Niihara, Michio Naito (Tokyo Univ Agri. Tech.) SCE2010-28 Link to ES Tech. Rep. Archives: SCE2010-28 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have investigated the effect on magnetic flux trapping by moats formed in NbN and MgB2 ground planes. The effect was evaluated by measuring flux trapping in series arrays of 1000 Josephson junctions fabricated on Nb, NbN and MgB2 ground planes. In this evaluation, flux trapping in the junctions on NbN ground planes was almost not observed in the perpendicular magnetic field range of -1.8 T to 1.4 T. Since this range was approximately twice as wide as the range in junctions on Nb grand planes, the moats formed in NbN ground planes were effective for excluding magnetic flux compared with Nb ground planes. MgB2 ground planes also encourage excluding magnetic flux by investigation of flux trapping in the range of 5 to 20 T. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Single flux quantum circuit / Josephson junction / Magnetic flux trapping / NbN / MgB2 / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 235, SCE2010-28, pp. 25-30, Oct. 2010. |
Paper # |
SCE2010-28 |
Date of Issue |
2010-10-12 (SCE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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SCE2010-28 Link to ES Tech. Rep. Archives: SCE2010-28 |
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