| Autor: |
Mitsumasa Suzuki, M. Komatsu, Hiroshi Morita, C. Takahashi, M. Nagano, Seiya Ogota |
| Rok vydání: |
1992 |
| Předmět: |
|
| Zdroj: |
Advances in Superconductivity IV ISBN: 9784431681977 |
| DOI: |
10.1007/978-4-431-68195-3_144 |
| Popis: |
Films of Y-Ba-Cu-O have been prepared in an argon-oxygen atmosphere by dc magnetron sputtering using a single sintered target with a Ba-poorer composition than stoichiometry. The total gas pressure is 300 mtorr and the oxygen pressure is adjusted in the range of 0.1–10 mtorr. As the oxygen pressure is increased, Ba content in films is highly reduced, although Cu content shows little dependence. The zero resistance transition temperature Tc, end of the best film reaches 89 K. Effects of oxygen pressure on Tc and composition of films are discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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