[20p-C207-1~16] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[20p-C207-9] Study on Nd-doped SrTiO₃ thin film as conductive buffer layer for REBa₂Cu₃O₇ superconducting wire using textured copper tape

〇Seiya Inoue¹, Masaki Kabeya¹, Ataru Ichinose², Toshiya Doi¹ (1.Kyoto Univ., 2.CRIEPI)

Keywords:REBCO, conductive buffer layer

In order to develop low-cost REBCO wires, we have developed a new structure for epitaxially growing REBCO via a conductive buffer layer on a textured Cu tape. In this structure, when the superconductivity is broken at a part of the REBCO layer, the current flowing in the REBCO layer can bypass to the Cu tape, which can work as a stabilizing layer as well as the biaxial crystal orientation template. In this study, I examined the possibility of applying Nd-doped SrTiO₃ as the novel conductive buffer layer.