| Presentation | 1997/11/20 Properties of YBCO/PBCO/YBCO trilayer junctions using c-axis oriented films M. Maruyama, A. Fujimaki, H. Hayakawa, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have studied properties of YBCO/PBCO/YBCO trilayer Josephson junctions using c-axis oriented films. The junctions with 30- and 40-nm thick barriers showed RSJ-like characteristics. Characteristics of quasi particle in I-V curve and its temperature dependence were almost the same characteristics as those observed in a ramp-edge junction with 30-nm thick barrier. On the other hand, magnitude of Jc and decay length was different from those of a ramp-edge junction. Excess current increased as the temperature decreased, deviating from RSJ-like characteristics. Excess current is thought not to be caused by pinholes in barrier layer but to originate in properties of PBCO itself because it was observed even though the barrier was very thick. Furthermore, we studied properties of PBCO films and found that PBCO films exhibited superconductivity. From these results, the cause of excess current is considered to be superconductivity of PBCO. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | YBCO trilayer junction / c-axis oriented film / PBCO film / excess current |
| Paper # | SCE97-34 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 1997/11/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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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) | Properties of YBCO/PBCO/YBCO trilayer junctions using c-axis oriented films |
| Sub Title (in English) | |
| Keyword(1) | YBCO trilayer junction |
| Keyword(2) | c-axis oriented film |
| Keyword(3) | PBCO film |
| Keyword(4) | excess current |
| 1st Author's Name | M. Maruyama |
| 1st Author's Affiliation | Department of Quantum Engineering, Nagoya University() |
| 2nd Author's Name | A. Fujimaki |
| 2nd Author's Affiliation | Department of Quantum Engineering, Nagoya University |
| 3rd Author's Name | H. Hayakawa |
| 3rd Author's Affiliation | Department of Quantum Engineering, Nagoya University |
| Date | 1997/11/20 |
| Paper # | SCE97-34 |
| Volume (vol) | vol.97 |
| Number (no) | 383 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |