[9p-N405-1~18] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-N405-9] Deposition of c-axis oriented YBa₂Cu₃O_7-x thin films on Si substrates using self-aligned LaNiO₃ (3)

〇(M1C)Tasuku Mita¹, Nakamura Kyousuke¹, Shimamura Kazutoshi¹, Kwahara Masami², Nagao Masanori³, Kawae Takeshi¹ (1.Kanazawa Univ., 2.Kojundo Chemical Lab. Co., ltd., 3.Yamanashi Univ.)

Keywords:

superconductivity,YBCO

With the aim of improving the flexibility of substrate materials for depositing YBa₂Cu₃O_7-xthin films, we are attempting to fabricate YBCO thin films on Si substrates using LaNiO₃ thin films, which exhibit self-aligned growth, as template layers. In this study, we focused on the possibility that Ni diffusion from the LNO layer may degrade the crystallinity and superconducting properties of the YBCO layer. To suppress Ni diffusion, we introduced a new SrRuO₃ buffer layer to form a YBCO/SRO/LNO/Si substrate multilayer structure and evaluated its crystallinity and superconducting properties.