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High rate in situ YBa2Cu3O7 film growth assisted by liquid phase

Title
High rate in situ YBa2Cu3O7 film growth assisted by liquid phase
Authors
Ohnishi T.Huh J.-U.Hammond R.H.Jo W.
Ewha Authors
조윌렴
SCOPUS Author ID
조윌렴scopus
Issue Date
2004
Journal Title
Journal of Materials Research
ISSN
0884-2914JCR Link
Citation
vol. 19, no. 4, pp. 977 - 981
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
High-rate (10 nm/s) in situ YBa2Cu3O7 (YBCO) film growth was demonstrated by molecular beam epitaxy with electron beam co-evaporation at a system pressure of approximately 5 times; 10-5 Torr. To explain the phase stability observed, it is suggested that activated oxygen is generated in the process. Growth of very good YBCO, with a Jc of more than 2 MA/cm2, is possible at this very high rate because the growth is in a liquid (Ba-Cu-O), which forms along with the YBCO epitaxy. This liquid seems essential for high Jc-YBCO film growth at very high in situ growth rates and may be essential for all high-rate processes, including postanneal ex situ processes.
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자연과학대학 > 물리학전공 > Journal papers
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