摘要
This paper studies the effect of oxygen partial pressure on the fabrication of YBa2Cu307-x films on （00/） LaAIO3 substrates by metalorganic deposition using trifluoroacetates （TFA-MOD）. As the oxygen partial pressure increases to 1500 Pa, a great increase in the superconducting properties is observed at high magnetic fields parallel to the YBCO c axis. The cross-sectional transmission electron microscope images show that a high density of stacking faults in the size range of 10-15 nm may act as flux pinning centres to enhance the critical current density of the YBCO films
This paper studies the effect of oxygen partial pressure on the fabrication of YBa2Cu307-x films on （00/） LaAIO3 substrates by metalorganic deposition using trifluoroacetates （TFA-MOD）. As the oxygen partial pressure increases to 1500 Pa, a great increase in the superconducting properties is observed at high magnetic fields parallel to the YBCO c axis. The cross-sectional transmission electron microscope images show that a high density of stacking faults in the size range of 10-15 nm may act as flux pinning centres to enhance the critical current density of the YBCO films
基金
supported by the National Natural Science Foundation of China (Grant No. 51002149)
