The growth and superconducting properties of epitaxial Tl2Ba2CaCu2O8 thin films
The growth and superconducting properties of epitaxial Tl2Ba2CaCu2O8 thin films
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DOI：
10.1088/0953-2048/7/9/010
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发表时间：
1994-09
影响因子：
3.6
通讯作者：
Shi‐Ping Yan;L. Fang;M. Si;H. Cao;Q. Song;J. Yan;X. D. Zhou;J. Hao
中科院分区：
文献类型：
--
作者：
Shi‐Ping Yan;L. Fang;M. Si;H. Cao;Q. Song;J. Yan;X. D. Zhou;J. Hao
Epitaxial Tl2Ba2CaCu2O8 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*106 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.
