| Presentation | 1993/12/8 Magnetic properties of grain boundary Josephson junction Tomoya Ogawa, Tsutomu Yamashita, Satoshi Awaji, Kazuo Watanabe, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Magnetic field dependence of the critical current in high Tc grain boundary Josephson junctions(GBJJ)was studied to characterize the uniformity of the junctions,the effect of the anisotropy in high Tc superconductor.First we have observed the discrepancy between Fraunhofer-like patterns of the GBJJs and that of an ideal Josephson junction.The discrepancy was due to the nonuniformity of an artificial grain boundary as a junction barrier.Next we present an analysis of the anisotropic effect on the Fraunhofer-like patterns and show that the effect of longer magnetic field penetration depth;lambda c is observed only when the field is applied almost parallel to the a-b plane of GBJJs.In addition,when the misorientation angle θ was 36.8゜,the total curre nt was almost Josephson current.On the contrary,GBJJS with θ=24゜ w ere weak links containing strong coupling regions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | high Tc superconductor / Josephson junction / grain boundary / Fraunhofer-like pattern / Flux focusing effect |
| Paper # | SCE93-50 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 1993/12/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | Magnetic properties of grain boundary Josephson junction |
| Sub Title (in English) | |
| Keyword(1) | high Tc superconductor |
| Keyword(2) | Josephson junction |
| Keyword(3) | grain boundary |
| Keyword(4) | Fraunhofer-like pattern |
| Keyword(5) | Flux focusing effect |
| 1st Author's Name | Tomoya Ogawa |
| 1st Author's Affiliation | Research Institute for Electrical Communication,Tohoku University() |
| 2nd Author's Name | Tsutomu Yamashita |
| 2nd Author's Affiliation | Research Institute for Electrical Communication,Tohoku University |
| 3rd Author's Name | Satoshi Awaji |
| 3rd Author's Affiliation | Institute for Material Research,Tohoku University |
| 4th Author's Name | Kazuo Watanabe |
| 4th Author's Affiliation | Institute for Material Research,Tohoku University |
| Date | 1993/12/8 |
| Paper # | SCE93-50 |
| Volume (vol) | vol.93 |
| Number (no) | 363 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |