| Presentation | 1993/7/26 Mechanism of precipitates formation and crystal growth of YBCO thin films Ryuta Tsuchiya, J.P. Gong, Kenji Fujito, Masashi Kawasaki, Mamoru Yoshimoto, Hideomi Koinuma, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High-quality c-axis-oriented YBa_2CU_3O_7-δ>(YBCO)films were pr epared using the laser ablation method.The atomically smooth and stable surface was demonstrated by low temperature STM, STS. However,high density of precipitates was observed on the surface. Scanning Auger electron spectroscopy identified these precipitates to be BaCuO_2and CuO.The small compositinal deviation from Y:Ba:Cu = 1:2:3,although undetectable by ICP,caused the outgrowth of the precipitates.The precipitate density could be decreased either by using off-axis substrates or by growing the film under the conditions which resulted in the lower crystallinity of the matrix film.The film thickness dependence of the density and the size of the precipitates revealed that the nucleation of the precipitates took place at the inifial stage of the film growth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | YBCO thin films / particle / crystallinity / STM / AFM / M-AES |
| Paper # | SCE93-18 |
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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 | |
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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) | Mechanism of precipitates formation and crystal growth of YBCO thin films |
| Sub Title (in English) | |
| Keyword(1) | YBCO thin films |
| Keyword(2) | particle |
| Keyword(3) | crystallinity |
| Keyword(4) | STM |
| Keyword(5) | AFM |
| Keyword(6) | M-AES |
| 1st Author's Name | Ryuta Tsuchiya |
| 1st Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology.() |
| 2nd Author's Name | J.P. Gong |
| 2nd Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology. |
| 3rd Author's Name | Kenji Fujito |
| 3rd Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology. |
| 4th Author's Name | Masashi Kawasaki |
| 4th Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology. |
| 5th Author's Name | Mamoru Yoshimoto |
| 5th Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology. |
| 6th Author's Name | Hideomi Koinuma |
| 6th Author's Affiliation | Research Laboratory of Engineering Materials,Tokyo Institute of Technology. |
| Date | 1993/7/26 |
| Paper # | SCE93-18 |
| Volume (vol) | vol.93 |
| Number (no) | 166 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |