| Presentation | 2008-01-25 Development of overdamped Josephson junctions with NbN electrodes Hiroyuki AKAIKE, Ryouhei KANADA, Yuki NAGAI, Akira Fujimaki, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Single flux quantum circuits / Niobium-nitride / overdamped Josephson junctions |
| Paper # | SCE2007-27 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2008/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| 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) | |
| Keyword(1) | Single flux quantum circuits |
| Keyword(2) | Niobium-nitride |
| Keyword(3) | overdamped Josephson junctions |
| 1st Author's Name | Hiroyuki AKAIKE |
| 1st Author's Affiliation | Department of Quantum Engineering, Nagoya University() |
| 2nd Author's Name | Ryouhei KANADA |
| 2nd Author's Affiliation | Department of Quantum Engineering, Nagoya University |
| 3rd Author's Name | Yuki NAGAI |
| 3rd Author's Affiliation | Department of Quantum Engineering, Nagoya University |
| 4th Author's Name | Akira Fujimaki |
| 4th Author's Affiliation | Department of Quantum Engineering, Nagoya University |
| Date | 2008-01-25 |
| Paper # | SCE2007-27 |
| Volume (vol) | vol.107 |
| Number (no) | 458 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |