| Presentation | 1993/10/20 Fabrication and properties of tunnel junctions using BKBO epitaxial film-Toward SIS junction- Koji Yamano, Masahiro Iyori, Seiji Suzuki, Kazuhiro Shimaoka, Hiroshi Suzuki, Kazuhiko Takahashi, Yorinobu Yoshisato, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The fabrication and properties of Ba_1-X>K_XBiO_3(BKBO)tunnel junctions with an artificial MgO barrier have been studied as a step toward all high-Tc SIS junctions.Epitaxial BKBO films prepared by rf-magnetron sputtering were used as the base- electrodes of the junctions.An MgO film was fabricated on each BKBO film using the MBE method.At the substrate temperature of 200℃ and 400℃,the MgO film on the BKBO film was polycrystalline and(11 0)oriented,respectively.In Au, MgO/BKBO junctions with a polycrystalline MgO film,non-linearity was clearly observed at 4.9 K and a high junction resistance of 75Ω・cm^2 at zero bias voltage was obtained.The normalized conductance of the junction at zero- bias corresponds to the theoretical leakage value predicted by the BCS theory within 5% error.These results demonstrate the advantages of an MgO layer as a tunnel barrier over natural barrier for all-oxide SIS junctions using BKBO films.Moreover,we examined the fabrication of SIS′ junctions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ba_1-x>K_xBiO_3 / tunnel junction / artificial barrier / natural barrier / quasi-particle injection |
| Paper # | SCE93-46 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 1993/10/20(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fabrication and properties of tunnel junctions using BKBO epitaxial film-Toward SIS junction- |
| Sub Title (in English) | |
| Keyword(1) | Ba_1-x>K_xBiO_3 |
| Keyword(2) | tunnel junction |
| Keyword(3) | artificial barrier |
| Keyword(4) | natural barrier |
| Keyword(5) | quasi-particle injection |
| 1st Author's Name | Koji Yamano |
| 1st Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd.() |
| 2nd Author's Name | Masahiro Iyori |
| 2nd Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| 3rd Author's Name | Seiji Suzuki |
| 3rd Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| 4th Author's Name | Kazuhiro Shimaoka |
| 4th Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| 5th Author's Name | Hiroshi Suzuki |
| 5th Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| 6th Author's Name | Kazuhiko Takahashi |
| 6th Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| 7th Author's Name | Yorinobu Yoshisato |
| 7th Author's Affiliation | Tsukuba Research Center,SANYO Electric Co.,Ltd. |
| Date | 1993/10/20 |
| Paper # | SCE93-46 |
| Volume (vol) | vol.93 |
| Number (no) | 279 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |