Effect of Nb5+ -doped YBCO Film Synthesized by Low-fluorine MOD Method

doi:10.3724/SP.J.1077.2013.12741

Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (9): 956-960.DOI: 10.3724/SP.J.1077.2013.12741

• Research Paper • Previous Articles Next Articles

Effect of Nb⁵⁺ -doped YBCO Film Synthesized by Low-fluorine MOD Method

MAO Lei, SUO Hong-Li, LIU Min, ZHANG Zi-Li, YE Shuai, MA Lin

(The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China)

Received:2012-12-06 Revised:2013-03-06 Published:2013-09-20 Online:2013-08-14
About author:MAO Lei. E-mail: maray@emails.bjut.edu.cn
Supported by:
National Natural Science Foundation of China(51171002); Beijing Municipal Natural Science Foundation; Beijing Municipal Natural Science Foundation B Type (KZ201310005003); Special Funds from the Central Finance to Support the Construction of Local University; 211 Program of Beijing City and Beijing University of Technology

Abstract

Abstract: Nb⁵⁺-doped YBCO film was fabricated successfully by low-fluorine metal organic deposition (MOD) method. The effective pinning centers in doped film are attributed to Nb-containing nanoparticles with the size of 20-30 nm. Measurement results show that the texture and critical temperature of the doped film are not influenced obviously by the nanoparticles. In addition, a significant enhancement of J_c is observed for YBCO films with nanoparticles compared to that of pure YBCO film by the field dependence of J_c values. The self-field critical current density reaches as high as 3.4 MA/cm², and the peak pinning force (F_p) of the doped film is greatly increased than the pure one, which reaches at 3.25 GN/m³.

Key words: YBCO film, doping , low-fluorine MOD method, double perovskite nanoparticles, field-property

CLC Number:

TQ174

MAO Lei, SUO Hong-Li, LIU Min, ZHANG Zi-Li, YE Shuai, MA Lin. Effect of Nb⁵⁺ -doped YBCO Film Synthesized by Low-fluorine MOD Method[J]. Journal of Inorganic Materials, 2013, 28(9): 956-960.

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Effect of Nb⁵⁺ -doped YBCO Film Synthesized by Low-fluorine MOD Method

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