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Effect of precursor composition on superconductivity properties of YBCO film prepared by TFA-MOD method

Authors :
Ding Fa-Zhu
Gu Hong-Wei
Source :
Acta Physica Sinica. 59:8142
Publication Year :
2010
Publisher :
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, 2010.

Abstract

The YBCO films were prepared on LAO single crystal by TFA-MOD process. The structure and properties of YBCO films were investigated through changing the Y123 stoichiometry. It is found that higher JC values in self-filed of YBCO films are achieved by using the starting solution with the Ba ∶Y ratio of 1.5 ∶1. X- ray diffraction analysis revealed that Y2Cu2O5 phases are formed in the final YBCO films,which may lead to very effective vortex pinning and then enhance the JC of YBCO films.

Details

ISSN :
10003290
Volume :
59
Database :
OpenAIRE
Journal :
Acta Physica Sinica
Accession number :
edsair.doi...........3d869134a7a5336480ff11d2031a1039