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研究了不同晶向的 ZrO_2(YSZ)与 YBa_2Cu_3O_(?)超导膜的相互作用。结果表明:衬底 ZrO_2的晶向对YBa_2Cu_3O_(7-δ)晶粒取向有明显影响,在<100>ZrO_2上制备的超导膜,超导晶粒 c 轴平行于衬底表面,出现择优取向;在 Y-Ba-Cu-O/ZrO_2上铜晶粒的析出是由于超导膜与 ZrO_2界面反应引起的;用俄歇能谱(AES)和背散射技术(RBS)都观察到了 Ba、Cu 原子向衬底的内扩散;同时,实验证实了在 ZrO_2衬底上热蒸发(?)薄层 Ag 对衬底反应有强压制作用,并在 YBa_2Cu_3O_(7-δ)/Ag/ZrO_2样品中观察到了超导晶粒 c 轴在垂直于衬底方向出现择优取向。
The interaction between ZrO_2 (YSZ) and YBa_2Cu_3O_ (?) Superconducting films with different crystal orientation was studied. The results show that the crystal orientation of ZrO2 substrate has a significant effect on the YBa2Cu3O7 (7-δ) crystal orientation. The superconducting film prepared on <100> ZrO2 has a c-axis parallel to the substrate surface and a preferred orientation ; Precipitation of copper grains on Y-Ba-Cu-O / ZrO 2 is due to the reaction of the superconducting film with ZrO 2; Ba, Cu and Cu are observed by Auger energy dispersive spectroscopy (AES) and backscattering (RBS) At the same time, experiments confirmed that the thin Ag layer on ZrO 2 substrate was strongly compressed to substrate reaction and was observed in YBa 2 Cu 3 O 7 (7-δ) / Ag / ZrO 2 samples To superconducting c-axis axis in the direction perpendicular to the preferred orientation appears.