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Tl-2212 thin films annealed in a Al2O3 crucible and a steel container*

Published online by Cambridge University Press:  13 December 2006

Changhong Yi
Affiliation:
Shandong Jiaotong University, Department of Physics, Jinan, Shandong Province 250023, China National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China Shangdong Normal University, College of Physics and Electronics, Jinan, Shandong Province 250014, China
Fangren Hu
Affiliation:
National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China
Dongning Zheng
Affiliation:
National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China
Qinggang Zhang
Affiliation:
Shangdong Normal University, College of Physics and Electronics, Jinan, Shandong Province 250014, China
Yingfei Chen
Affiliation:
National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China
Xiaoping Xu
Affiliation:
National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080, China
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Abstract

Tl2Ba2CaCu2O y (Tl-2212) thin films were fabricated on (001) LaAlO3 substrates by a two-step technique in a semi-closed aluminate crucible and a sealed steel container, respectively. First, the amorphous precursor films were deposited by the pulsed laser deposition (PLD) method, and then they were thalliated in different containers. Almost pure phase Tl-2212 thin films can be prepared in both of the containers. However, the as-annealed films show obvious differences in superconducting properties and microstructure.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2006

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Footnotes

*

Project supported by the National Nature Science Foundation of China (No. 10574154 and No. 10474060), by the Ministry of Science and Technology (No. 2006CB601007) and by Chinese Academy of Sciences.

References

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