High-quality YBCO thin films grown by off-axis PLD geometry

被引：7

作者：

Boffa, V

Petrisor, T

Gambardella, U

Ciontea, L

Bruzzese, R

Fabbri, F

Barbanera, S

机构：

[1] CNR,IESS,I-00156 ROME,ITALY

[2] TECH UNIV,CLUJ NAPOCA,ROMANIA

[3] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1997年 / 7卷 / 02期

关键词：

D O I：

10.1109/77.620711

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：

In order to improve the surface quality of the pulsed laser deposited YBCO thin films an off-axis deposition geometry is proposed. Using this new PLD geometry, YBCO thin films have been grown on SrTiO3 substrates. These films were found to have a good surface morphology without droplets or other particulates, and good superconducting and structural properties. We have obtained Tc(R=0)=89 K, R(300)/R(100)=2.6, Delta T=1.5 K, Jc=2x10(6) A/cm(2) (at 77 K and zero magnetic field), and the FWHM of the rocking curve of (005) YBCO peak is about 0.12 degrees. A study regarding the influence of the deposition parameters on the film quality is also presented.

引用

页码：1189 / 1192

页数：4

共 8 条

[1]

BOFFA V, UNPUB PHYSICA C

[2]

BRAILOVSKY AB, 1995, APPL PHYS A-MATER, V61, P81, DOI 10.1007/BF01538216

[3] SINGLE-PHASE 60-K BULK SUPERCONDUCTOR IN ANNEALED BA2YCU3O7-DELTA(0.3-LESS-THAN-DELTA-LESS-THAN-0.4) WITH CORRELATED OXYGEN VACANCIES IN THE CU-O CHAINS [J].