High Temperature Treatment of DyBa2Cu3O7-x Thin Film Prepared by F-Free Metal Organic Deposition Method

被引：0
|
作者：
Shi Xiaoyan [1 ]
Pu Minghua
Wang Wentao
Zhao Yong [2 ]
机构：
[1] SW Jiaotong Univ, Superconducting Res & Dev Ctr, Key Lab Magnet Levitat & Maglev Trains, Minist Educ China, Chengdu 610031, Peoples R China
[2] Univ New S Wale, Sydney, NSW 2052, Australia
来源：
RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷 / 04期
关键词：
F-free MOD; high temperature treatment; DyBCO film; YBCO COATED CONDUCTOR; PROGRESS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Epitaxial DyBa2Cu3O7-x(DyBCO) superconductive thin film was fabricated via a F-free metal organic deposition (MOD) method on the (001) single crystal substrate of LaAlO3. Because of the fluorine-free metal organic system, harmful gas by the normal TFA-MOD approach was avoided during the heat treatment. A high temperature treatment was introduced during the growth of DyBCO film and then the SEM observation shows denser microstructure and better texture of the film. X-ray diffraction pattern reveals the c-axis oriented grains. phi-scan also shows an excellent in-plane texture in the DyBCO film with a high temperature treatment. The DyBCO film fabricated by F-free MOD with a high temperature treatment has a superconductivity transition temperature of 92 K and a critical current density of 1.8 MA/cm(2) at 77 K in self-field.
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页码：707 / 710
页数：4
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