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Paper Abstract and Keywords
Presentation 2014-10-24 17:20
Imaging method of temperatur distribution in Bi-2212 intrinsic Josephson junction stacks by double-sided fabrication
Tsubasa Nishikata, Yukio Kotaki, Takahiro Kato, Takayuki Ishibashi, Kanji Yasui (Nagaoka Univ. of Tech.) CPM2014-112
Abstract (in Japanese) (See Japanese page) 
(in English) Bi2Sr2CaCu2Ox (Bi-2212) crystal behaves as a stack of intrinsic Josephson junctions (IJJs). Recently many researchers have reported THz electromagnetic radiation from large mesa structures patterned on Bi-2212 crystal. In this study, we fabricated a Bi-2212 stack with seize of 183×38×1.15 μm^3 by double-sided patterning (DSP) process. To confirm the THz emission, current voltage characteristics was investigated and detection experiment of electromagnetic radiation by a Si bolometer was done. We detected the emission signal at 30, 40 and 50 K. Voltage appeared in a response of the bolometer was 513 mV at 30 K. Also the voltage decreased with increasing temperature from 513 mV at 30 K to 208 ~ 286 mV at 50 K. We found that the result arise from a strong self heating effect in Bi-2212 stack.
In this paper we will report the next step to estimate the temperature distribution in Bi-2212 intrinsic Josephson junction stacks by DSP process.
Keyword (in Japanese) (See Japanese page) 
(in English) Terahertz / Josephson junction / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 276, CPM2014-112, pp. 39-43, Oct. 2014.
Paper # CPM2014-112 
Date of Issue 2014-10-17 (CPM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 CPM  
Conference Date 2014-10-24 - 2014-10-25 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2014-10-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Imaging method of temperatur distribution in Bi-2212 intrinsic Josephson junction stacks by double-sided fabrication 
Sub Title (in English)  
Keyword(1) Terahertz  
Keyword(2) Josephson junction  
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1st Author's Name Tsubasa Nishikata  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
2nd Author's Name Yukio Kotaki  
2nd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
3rd Author's Name Takahiro Kato  
3rd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
4th Author's Name Takayuki Ishibashi  
4th Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
5th Author's Name Kanji Yasui  
5th Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
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Speaker Author-1 
Date Time 2014-10-24 17:20:00 
Presentation Time 20 minutes 
Registration for CPM 
Paper # CPM2014-112 
Volume (vol) vol.114 
Number (no) no.276 
Page pp.39-43 
#Pages 5 
Date of Issue 2014-10-17 (CPM) 

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