| Off-Axis RF 마그네트론 스퍼터링에 의한 $YBa_2Cu_3O_{7-x}$ 고온 초전도 박막의 제조 |
| 성건용, 서정대, 강광용, 장순호 |
| 한국전자통신연구소 기초기술연구부 |
| Fabrication of High-Tc Superconducting $YBa_2Cu_3O_{7-x}$ Thin Films by Off-Axis RF Magnetron Sputtering |
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| ABSTRACT |
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High-Tc YBa2Cu3O7-x superconducting thin films have been prepared by single-target off-axis RF magnetron sputtering. Optimal ratio of Y : Ba : Cu of the single-target was determined as 1 : 1.65 : 3.35 in order to obtain the stoichiometric films. Tc, crystalline phase, and microstructures of the surface and cross-section of the ex-situ YBa2Cu3O7-x thin films on MgO(100) had a Tc, zero of 80K, and the films on LaAlO3/Si had a Tc, on-set of 90 K and a Tc, zero of 70 K. |
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