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

Ding Fa-Zhu | Zendy; Hongwei Gu | Zendy

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

Author(s) -

Ding Fa-Zhu,

Hongwei Gu

Publication year - 2010

Publication title -

acta physica sinica

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.

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