| Presentation | 2000/10/20 Josephson Plasma in Bi_2Sr_2CaCu_2O_8+δ detected by Nb/Al-AlO_x/Nb Junction Y Yamada, Y Uematsu, Y Mizugaki, K Nakajima, T Yamashita, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We fabricated Nb/Al-AlO_x/Nb Josephson junctions on ab-plane of Bi_2Sr_2CaCuO8+δ(BSCCO)single crystals to detect the Josephson plasma in BSCCO. We also fabricated Nb/Al-AlO_x/Nb Josephson junctions on Si wafer as references. Both junctions showed resistively shunted junction properties. Only for the junctions on BSCCO single crystals, we have observed clear periodic step structure on the current-voltage properties. A characteristic frequency corresponding to the voltage spacing for the step structure is about 50～60 GHz, which is in a good agreement with the Josephson plasma frequency of an underdoped BSCCO. It is implied that the Josephson plasma in BSCCO interacts with the ac Josephson current of the closely coupled Nb/Al-AlO_x/Nb Josephson junctions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Josephson Plasma / Bi_2Sr_2CaCu_2O8+δ / Nb/Al-AlO_x/Nb / Josephson junction |
| Paper # | SCE2000-30 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2000/10/20(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) | Josephson Plasma in Bi_2Sr_2CaCu_2O_8+δ detected by Nb/Al-AlO_x/Nb Junction |
| Sub Title (in English) | |
| Keyword(1) | Josephson Plasma |
| Keyword(2) | Bi_2Sr_2CaCu_2O8+δ |
| Keyword(3) | Nb/Al-AlO_x/Nb |
| Keyword(4) | Josephson junction |
| 1st Author's Name | Y Yamada |
| 1st Author's Affiliation | Research Institute of Electrical Communication, Tohoku University() |
| 2nd Author's Name | Y Uematsu |
| 2nd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University New Industry Creation Hatchery Center, Tohoku University |
| 3rd Author's Name | Y Mizugaki |
| 3rd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University New Industry Creation Hatchery Center, Tohoku University |
| 4th Author's Name | K Nakajima |
| 4th Author's Affiliation | Research Institute of Electrical Communication, Tohoku University New Industry Creation Hatchery Center, Tohoku University |
| 5th Author's Name | T Yamashita |
| 5th Author's Affiliation | CREST, Japan Science and Technology Corporation New Industry Creation Hatchery Center, Tohoku University |
| Date | 2000/10/20 |
| Paper # | SCE2000-30 |
| Volume (vol) | vol.100 |
| Number (no) | 399 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |