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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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Keywords:
- TFA-MOD /
- YBCO film /
- precursor composition /
- flux pinning
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[12] Gutierrez J,Llordes A,Gazquez J,Gibert M,Roma N,Ricart S,Pomar A,Sanditmenge F,Mestres N,Puig T,Obradors X 2007 Nature Mater. 6 367
[13] Zhou Y X,Ghalsasi S,Rusakova I,Salama K 2007 Supercond. Sci. Technol. 20 S147
[14] Hnisch J,Cai C,Huhne R,Schultz L,Holzapfel B,2005 Appl. Phys. Lett. 86 122508
[15] Haugan T,Barnes P N,Wheeler R,Meisenkothen F,Sumption M 2004 Nature 43 0867
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[1] Gupta A,Jagannathan R,Cooper E I,Giese E A,Landman J I,Hussey B W 1988 Appl. Phys. Lett. 52 2077
[2] Puig T,González J C,Pomar A,Mestres N,Castano O,Coll M,Gáazquez J,Sandiumenge F,Pinol S,Obradors X 2005 Supercond. Sci. Technol. 18 1141
[3] Araki T,Hirabayashi I,2003 Supercond. Sci. Technol. 16 R71
[4] Ding F Z,Lv X D,Gu H W,Li T,Cao J L 2009 Chin. Phys. B 18 1631
[5] Foltyn1 S R,Civale1 L,MacManus-Driscoll J L 2007 Nature. Mater. 6 631
[6] Feng Y,Zhou L,Yang W M,Zhang C P,Wang J Y,Yu Z M,Wu X Z 2000 Acta Phys. Sin. 49 146 (in Chinese) [冯 勇、周 廉、杨万民、张翠萍、汪京荣、于泽铭、吴晓祖 2000 49 146]
[7] Sha J J,Yao Z W,Yu J N,Yu G,Luo J H,Wen H H,Yang W L,Li S L 2000 Acta Phys. Sin. 49 1356 (in Chinese) [沙建军、姚仲文、郁金南、郁 刚、罗金汉、闻海虎、杨万里、李世亮 2000 49 1356]
[8] Nie J C,Yamasaki H,Yamada H,Nakagawa Y,Develos-Bagarinao K,Mawatari Y 2004 Supercond. Sci. Technol. 17 845
[9] Chen Z,Kametani F,Kim S I,Larbalestier D C,Jang H W,Choi K J,Eom C B 2008 J. Appl. Phys. 103 043913
[10] Baca F J,Barnes P N,Emergo R L S,Haugan T J,Reichart J N,Wu J Z 2009 Appl. Phys. Lett. 94 102512
[11] MacManus-Driscoll J L,Foltyn S R,Jia Q X,Wang H,Serquis A,Civale L,Maiorov B,Hawley M E,Maley M P,Peterson D E 2004 Nature Mater. 3 439
[12] Gutierrez J,Llordes A,Gazquez J,Gibert M,Roma N,Ricart S,Pomar A,Sanditmenge F,Mestres N,Puig T,Obradors X 2007 Nature Mater. 6 367
[13] Zhou Y X,Ghalsasi S,Rusakova I,Salama K 2007 Supercond. Sci. Technol. 20 S147
[14] Hnisch J,Cai C,Huhne R,Schultz L,Holzapfel B,2005 Appl. Phys. Lett. 86 122508
[15] Haugan T,Barnes P N,Wheeler R,Meisenkothen F,Sumption M 2004 Nature 43 0867
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