| Paper Abstract and Keywords |
| Presentation |
2008-01-25 13:50
[Invited Talk]
Development of overdamped Josephson junctions with NbN electrodes
Hiroyuki Akaike, Ryouhei Kanada, Yuki Nagai, Akira Fujimaki (Nagoya Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper describes the current status and future prospect of the development of self-shunted overdamped junctions with NbN electrodes which we have been conducting as a junction technology for future single-flux-quantum (SFQ) circuits. NbN junctions are expected to have high IcRn products because of the larger energy gap of NbN than that of Nb, and will lead to higher speed operation of SFQ circuits and higher density interconnect in the circuits due to the reduction of interconnect line width. In addition, the realization of a self-shunted junction will enable us to increase integration level of the circuits. In this work, we have adopted a superconductor (S) – normal layer (N) – insulating layer (I) – normal layer (N) – superconductor (S) junction as a junction structure for a self-shunted junction, and done AlN as an I layer and NbNx as an N layer. Here, our achievement for realization of the junction is described. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Single flux quantum circuits / Niobium-nitride / overdamped Josephson junctions / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 107, no. 458, SCE2007-27, pp. 13-18, Jan. 2008. |
| Paper # |
SCE2007-27 |
| Date of Issue |
2008-01-18 (SCE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
| Download PDF |
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| Conference Information |
| Committee |
SCE |
| Conference Date |
2008-01-25 - 2008-01-25 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Digital applications |
| Paper Information |
| Registration To |
SCE |
| Conference Code |
2008-01-SCE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Development of overdamped Josephson junctions with NbN electrodes |
| Sub Title (in English) |
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| Keyword(1) |
Single flux quantum circuits |
| Keyword(2) |
Niobium-nitride |
| Keyword(3) |
overdamped Josephson junctions |
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| 1st Author's Name |
Hiroyuki Akaike |
| 1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 2nd Author's Name |
Ryouhei Kanada |
| 2nd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 3rd Author's Name |
Yuki Nagai |
| 3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 4th Author's Name |
Akira Fujimaki |
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Nagoya University (Nagoya Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2008-01-25 13:50:00 |
| Presentation Time |
25 minutes |
| Registration for |
SCE |
| Paper # |
SCE2007-27 |
| Volume (vol) |
vol.107 |
| Number (no) |
no.458 |
| Page |
pp.13-18 |
| #Pages |
6 |
| Date of Issue |
2008-01-18 (SCE) |