ROLE OF BUFFER LAYERS FOR SUPERCONDUCTING YBA2CU3O7-X THIN-FILMS ON GAAS SUBSTRATES

被引：21
作者：
JIA, QX
LEE, SY
ANDERSON, WA
SHAW, DT
机构：
来源：
APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 09期
关键词：
D O I：
10.1063/1.106363
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
High-temperature superconducting YBa2Cu3O7-x (YBCO) thin films were deposited on GaAs substrates by laser ablation. A double-buffer layer of yttrium-stabilized ZrO2 (YSZ)/Si3N4 was used to nucleate YBCO but also to prevent the degradation of the GaAs during YBCO film deposition. Superconducting YBCO thin films with a highly c-axis orientation perpendicular to the substrate surface, zero-resistance temperature of 85.5 K, and critical current density of 1.9 X 10(3) and 1.3 X 10(4) A/cm2 at 77 and 50 K, respectively, have been achieved in our experiments. These values are believed to be the best results reported so far for YBCO on GaAs.
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页码：1120 / 1122
页数：3
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