Open AccessEffect of precursor composition on superconductivity properties of YBCO film prepared by TFA-MOD method
Author(s) -
Fazhu Ding,
Hong Gu
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8142
Subject(s) - materials science , stoichiometry , superconductivity , diffraction , mod , vortex , condensed matter physics , chemical engineering , chemistry , optics , thermodynamics , physics , engineering , artificial intelligence , computer science
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.