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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
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
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SCE  
Conference Date 2010-10-19 - 2010-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Fundamental Technologies for Superconducting Electronics, etc. 
Paper Information
Registration To SCE 
Conference Code 2010-10-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Effect of NbN or MgB2 Ground Planes on Magnetic Flux Trapping 
Sub Title (in English)  
Keyword(1) Single flux quantum circuit  
Keyword(2) Josephson junction  
Keyword(3) Magnetic flux trapping  
Keyword(4) NbN  
Keyword(5) MgB2  
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Keyword(7)  
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1st Author's Name Naoki Mitamura  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Naoto Naito  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Hiroyuki Akaike  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Akira Fujimaki  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
5th Author's Name Yoshihiro Niihara  
5th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ Agri. Tech.)
6th Author's Name Michio Naito  
6th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ Agri. Tech.)
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Speaker Author-1 
Date Time 2010-10-19 13:15:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2010-28 
Volume (vol) vol.110 
Number (no) no.235 
Page pp.25-30 
#Pages 6 
Date of Issue 2010-10-12 (SCE) 

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