Effects of growth rate and buffer-layer on Bi2Sr2CaCu2Oy thin film fabrication
| Autor: | Hironaru Murakami, Tsuyohito Ito, Yang Qi, Kunio Sakai |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Fabrication Inorganic chemistry Step height General Physics and Astronomy Surfaces and Interfaces General Chemistry Substrate (electronics) Condensed Matter Physics Buffer (optical fiber) Surfaces Coatings and Films Zero resistance Growth rate Composite material Thin film Layer (electronics) |
| Zdroj: | Applied Surface Science. :335-339 |
| ISSN: | 0169-4332 |
| Popis: | The effect of the growth rate on the Bi2Sr2CaCu2Oy (Bi2212) thin film quality on MgO substrate is investigated at several growth rates from 0.175 to 3 nm/min. The maximal step height on the film surface is improved from about 100 to 6 nm by the reduction of growth rate to 0.5 nm/min and simultaneously the superconducting critical temperature attaining to a zero resistance Tc(R=0), is also improved from 50 to 63 K. The surface morphologies of the upmost Bi-superconducting thin films with the intermediate layers on MgO substrate is also studied in contrast to that deposited directly on the MgO substrate. |
| Databáze: | OpenAIRE |
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