Use of SrTiO3 as a single buffer layer for RABiTS YBCO coated conductor

被引:17
作者
Chung, JK [1 ]
Ko, RK
Shi, DQ
Ha, HS
Kim, H
Song, KK
Park, C
Moon, SH
Yoo, SI
机构
[1] Changwon Natl Univ, Inst Ind Technol, Kyungnam, South Korea
[2] Korea Electrotechnol Res Inst, Kyungnam, South Korea
[3] Seoul Natl Univ, Dept Mat, Seoul, South Korea
关键词
coated conductors; PLD; single buffer layer; SrTiO3; YBCO;
D O I
10.1109/TASC.2005.848709
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
SrTiO3 (STO) films were epitaxially deposited by PLD on textured Ni-3wt%W (Ni-3W) substrates. The STO film was deposited in two steps-reducing atmosphere first, and then oxidizing atmosphere-to prevent the oxidation of the metal surface from hindering the epitaxial relationship between the film and the substrate. The deposited STO films exhibited sharp biaxial texture and dense surface. YBCO films were epitaxially deposited on STO/Ni-3W and showed J(c) (77 K, self field) = 1.2 MA/cm(2) and T-c(onset) = 88 K. Auger electron spectrometry depth profile analyses show that the STO film can block the diffusion of the metal from the substrate. This work has shown that STO films epitaxially deposited on textured Ni-3W substrate can be used as a single buffer layer of the high current carrying YBCO coated conductor.
引用
收藏
页码:3020 / 3023
页数:4
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