Recent progress in continuously processed IBAD MgO template meters for HTS applications

被引：32

作者：

Groves, JR ^{[1
]}

Arendt, PN ^{[1
]}

Foltyn, SR ^{[1
]}

Jia, QX ^{[1
]}

Holesinger, TG ^{[1
]}

Kung, H ^{[1
]}

DePaula, RF ^{[1
]}

Dowden, PC ^{[1
]}

Peterson, EJ ^{[1
]}

Stan, L ^{[1
]}

Emmert, LA ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 382卷 / 01期

关键词：

YBCO coated conductor; ion beam assisted deposition; reflected high-energy electron diffraction; biaxial texture; magnesium oxide;

D O I：

10.1016/S0921-4534(02)01194-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We discuss our recent progress using IBAD MgO as a template for subsequent deposition of YBa2Cu3O7-delta (YBCO) high-temperature superconductors on metallic substrate tapes. We have refined the process by improving substrate preparation and by using reflected high-energy electron diffraction to monitor and improve IBAD MgO films. High quality, continuously processed IBAD MgO (c-IBAD) has been deposited on moving meter-length metal tape. By incorporating these optimized processing parameters, we have been able to deposit biaxially textured MgO on metallic substrates continuously with the best in-plane mosaic spreads near 9degrees. The subsequent pulsed laser deposition of 1-2 mum thick YBCO films on c-IBAD has resulted in superconducting transport critical current densities > 1 MA/cm(2) (75 K, SF) on small area samples. Longer 4.5 cm samples of c-IBAD tape have also been coated with a I cm wide sample carrying 93 A (75 K, SF) for a 1.5 mum thick YBCO. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 47

页数：5