YBa2Cu3O7-x/SrTiO3 BUAYERS FOR SUPERCONDUCTING FIELD EFFECT DEVICES BY PULSED LASER DEPOSITION

被引：7

作者：

Doughty, C. ^{[1
]}

Walkenhorst, A. ^{[1
]}

Xi, X. X. ^{[1
]}

Kwon, C. ^{[1
]}

Li, Qi ^{[1
]}

Bhattacharya, S. ^{[1
]}

Findikoglu, A. T. ^{[1
]}

Mao, S. N. ^{[1
]}

Venkatesan, T. ^{[1
]}

Spencer, N. G.

Grace, W. R.

机构：

[1] Univ Maryland, Dept Phys, Ctr Superconduct Res, College Pk, MD 20742 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.234009

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：

Materials issues relevant to the growth of high quality YBa2Cu3O7-x1/SrTiO3 (YBCO/STO) bilayers for use in superconducting field effect devices have been studied. Different substrate materials and growth conditions were investigated. NdGaO3 was determined to be the most promising substrate material due to its low surface roughness and good lattice match to YBCO. The electrical properties of ultrathin YBCO and YBCO/STO bilayers grown by Pulsed Laser Deposition were also investigated as a function of substrate temperature. The optimized deposition temperature for 10run thick YBCO was found to be 60C below that of thick (100nm) films. STO overlayers with dielectric constant, epsilon similar to 700 and breakdown field, E-BD similar to 625kV/cm were fabricated. The STO/YBCO interface was also studied.

引用

页码：2910 / 2913

页数：4

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