THE GROWTH AND SUPERCONDUCTING PROPERTIES OF EPITAXIAL TL2BA2CACU2O8 THIN-FILMS

被引：50

作者：

YAN, SL ^{[1
]}

FANG, L ^{[1
]}

SI, MS ^{[1
]}

CAO, HL ^{[1
]}

SONG, QX ^{[1
]}

YAN, J ^{[1
]}

ZHOU, XD ^{[1
]}

HAO, JM ^{[1
]}

机构：

[1] TIANJIN ELECTR MAT RES INST,TIANJIN 300192,PEOPLES R CHINA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 09期

关键词：

D O I：

10.1088/0953-2048/7/9/010

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial TL(2)Ba(2)CaCu(2)O(8) thin films have been prepared on (001) LaAlO3 substrates by DC magnetron sputtering and a post-annealing process. X-ray diffraction (XRD) theta-2 theta scans, phi scans and rocking curves proved that the thin films are strongly textured with the c axis parallel to the c axis of the substrate and epitaxially grown on the substrate. A critical current density of 7.6 x 10(6) A cm(-2) at 77 K has been obtained in zero magnetic field, and the films have strong flux pinning force in high magnetic fields. When magnetic fields were applied perpendicular to the Cu-O plane of the film, the critical current density dropped only by a factor of seven in a 4 T magnetic field and a factor of 15 in a 6.5 T magnetic field.

引用

页码：681 / 684

页数：4

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