| Presentation | 1993/7/26 Photodoping Effects in YBCO Thin Films and Step-Edge Junctions Teherani Ferechteh Hosseini, Keiichi Tanabe, Syugo Kubo, Hidefumi Asano, Minoru Zuzuki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Visible light illumination effects on YBCO thin film constrictions and step-edge junctions are investigated using a 632. 8 nm He-Ne laser which is coupled to an optical fiber with a power density of up to 300 W, cm^2.A persistent photoconductivity and a clear photoinduced T_c enhancement are observed even for thin films with a T_c as high as 87 K and larger effects are observed for lower-T_c films with lower oxygen contents.These variations result from the increase in the hole concentration in the CuO_2 Plane.It is demonstrated that the critical current of both the constrictions and step-edge junctions can be controlled in situ by varying the cumulative photon dose. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | YBCO thin films / high-Tc superconductors / step-edge junction / photodoping effect / persistent photoconductivity / critical current |
| Paper # | SCE93-22 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 1993/7/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Photodoping Effects in YBCO Thin Films and Step-Edge Junctions |
| Sub Title (in English) | |
| Keyword(1) | YBCO thin films |
| Keyword(2) | high-Tc superconductors |
| Keyword(3) | step-edge junction |
| Keyword(4) | photodoping effect |
| Keyword(5) | persistent photoconductivity |
| Keyword(6) | critical current |
| 1st Author's Name | Teherani Ferechteh Hosseini |
| 1st Author's Affiliation | NTT Interdisciplinary Research Laboratories() |
| 2nd Author's Name | Keiichi Tanabe |
| 2nd Author's Affiliation | NTT Interdisciplinary Research Laboratories |
| 3rd Author's Name | Syugo Kubo |
| 3rd Author's Affiliation | NTT Interdisciplinary Research Laboratories |
| 4th Author's Name | Hidefumi Asano |
| 4th Author's Affiliation | NTT Interdisciplinary Research Laboratories |
| 5th Author's Name | Minoru Zuzuki |
| 5th Author's Affiliation | NTT Interdisciplinary Research Laboratories |
| Date | 1993/7/26 |
| Paper # | SCE93-22 |
| Volume (vol) | vol.93 |
| Number (no) | 166 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |