| Presentation | 2020-11-26 Fabrication of NbN based ferromagnetic Josephson junction with PdNi barrier layer Riku Sugimoto, Hayate Nakamura, Duong Pham, Masamitsu Tanaka, Taro Yamashita, Akira Fujimaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We develop ferromagnetic Josephson junctions to realize the flux-bias-free superconducting flux quantum bit (qubit) with the ferromagnetic π junction which has an advantage for large-scale superconducting quantum circuits. As NbN-based ferromagnetic Josephson junction suitable for the qubit applications, NbN/CuNi/NbN ferromagnetic π junctions have been reported so far. In the junctions with CuNi barrier, however, inhomogeneous Ni clusters in the CuNi film has been reported. In this work, we fabricated the NbN-based Josephson junctions with ferromagnetic PdNi barriers in which the better in-plane magnetic uniformity is expected and evaluated their characterisitcs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum bit / Ferromagnetic Josephson junction / π-junction |
| Paper # | SCE2020-14 |
| Date of Issue | 2020-11-18 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2020/11/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online conference |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Satoshi Kohjiro(AIST) |
| Vice Chair | |
| Secretary | (NICT) |
| Assistant | Hiroyuki Akaike(Daido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fabrication of NbN based ferromagnetic Josephson junction with PdNi barrier layer |
| Sub Title (in English) | |
| Keyword(1) | Quantum bit |
| Keyword(2) | Ferromagnetic Josephson junction |
| Keyword(3) | π-junction |
| 1st Author's Name | Riku Sugimoto |
| 1st Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 2nd Author's Name | Hayate Nakamura |
| 2nd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 3rd Author's Name | Duong Pham |
| 3rd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 4th Author's Name | Masamitsu Tanaka |
| 4th Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 5th Author's Name | Taro Yamashita |
| 5th Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 6th Author's Name | Akira Fujimaki |
| 6th Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2020-11-26 |
| Paper # | SCE2020-14 |
| Volume (vol) | vol.120 |
| Number (no) | SCE-251 |
| Page | pp.pp.29-33(SCE), |
| #Pages | 5 |
| Date of Issue | 2020-11-18 (SCE) |