Effect of Y{sub 2}BaCuO{sub 5} Nanoparticle Doping on Critical Current Density of YBa{sub 2}Cu{sub 3}O{sub 7-δ} Bulk Superconductor
Journal Article
·
· Journal of Superconductivity and Novel Magnetism
- Shahid-Chamran University of Ahvaz, Physics Department, Faculty of Science (Iran, Islamic Republic of)
This study presents the effect of Y{sub 2}BaCuO{sub 5} (Y211) nanoparticle doping on critical current density and critical temperature of YBa{sub 2}Cu{sub 3}O{sub 7-δ} (YBCO) superconductor. Y211 nanoparticles with different particle sizes ranging from 34 to 455 nm were synthesized by a sol-gel method, then doped into the YBCO superconductor by 0.5, 1, and 2 wt.%. Samples were characterized using X-ray diffraction and scanning electron microscope measurements. The standard four-probe technique was used to measure the critical current density at 77 K. The results showed that in the all-doped samples, critical current density was higher than that of the pure sample. It was found that in the samples containing 1 and 2 wt.% of Y211 nanoparticles, by increasing the size of nanoparticles, the J{sub c} was increased, but in samples containing 0.5 wt.%, the J{sub c} decreased. The maximum critical current density of 64 A/cm {sup 2} was obtained for the samples doped with 2 wt.% of 455 nm Y211 nanoparticles. Also, it was observed that the critical temperature slightly decreased with nanoparticle doping.
- OSTI ID:
- 22774137
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 1 Vol. 31; ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
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