Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2022-08-09 11:25
Analysis of pi-junction-based SQUID to obtain strong magnetic coupling
Masayuki Higashi, Yuto Takeshita, Hinata Fujisawa, Feng Li, Masamitsu Tanaka, Akira Fujimaki (Nagoya Univ.) SCE2022-5
Abstract (in Japanese) (See Japanese page) 
(in English) Magnetic coupling is often required in superconducting circuits, where high coupling coefficients are required. In this research, we aim to realize high magnetic coupling coefficients by using the characteristics of π-rf-SQUID, including one π-phase shift Josephson junction (π-junction) in the superconducting loop. π-rf-SQUID has non-hysteresis characteristics between internal magnetic flux and external magnetic flux when LI_c product is small, which is the product of the loop inductance L and the critical current value I_c of the π-junction. π-rf-SQUID is placed between the primary and secondary sides of the magnetic coupling, and we excite the magnetic flux on the primary side. In π-rf-SQUID, the internal magnetic flux becomes larger than the external magnetic flux when the input external magnetic flux is near zero. By using this effect, it is possible that a high magnetic coupling coefficient can be realized. In this paper, we report the experimental results to detect the internal magnetic flux of π-rf-SQUIDs using a dc-SQUID. We confirmed that the modulation pattern of the critical current value of the dc-SQUID changed by the non-linearity of the internal magnetic flux of π-rf-SQUID, and the modulation period becomes short near the zero excitation magnetic flux.
Keyword (in Japanese) (See Japanese page) 
(in English) Ferromagnetic Josephson junction / π junction / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 150, SCE2022-5, pp. 24-29, Aug. 2022.
Paper # SCE2022-5 
Date of Issue 2022-08-02 (SCE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
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)
Download PDF SCE2022-5

Conference Information
Committee SCE  
Conference Date 2022-08-09 - 2022-08-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SCE 
Conference Code 2022-08-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of pi-junction-based SQUID to obtain strong magnetic coupling 
Sub Title (in English)  
Keyword(1) Ferromagnetic Josephson junction  
Keyword(2) π junction  
Keyword(3)  
Keyword(4)  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masayuki Higashi  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Yuto Takeshita  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Hinata Fujisawa  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Feng Li  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
5th Author's Name Masamitsu Tanaka  
5th Author's Affiliation Nagoya University (Nagoya Univ.)
6th Author's Name Akira Fujimaki  
6th Author's Affiliation Nagoya University (Nagoya Univ.)
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2022-08-09 11:25:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2022-5 
Volume (vol) vol.122 
Number (no) no.150 
Page pp.24-29 
#Pages 6 
Date of Issue 2022-08-02 (SCE) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan