Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2

	Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2
	Ma YW(马衍伟)
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2010
通讯作者	马衍伟
中文摘要	Polycrystalline Sr0.6K0.4Fe2As2 samples with various Pb additions (0-20 wt%) were prepared using a one-step solid state reaction. X-ray diffraction analysis shows no evidence for a chemical reaction between the Pb and the FeAs-based superconductor. However, the presence of Pb can affect the microstructure and superconducting properties of the final products. The critical transition temperature T-c indicates no degradation up to 20 wt% Pb addition, and dramatic improvements of magnetic J(c) and irreversibility field H-irr were observed for appropriate Pb concentrations. The transport critical current property of pure and Pb added Sr0.6K0.4Fe2As2 tapes was also measured by a four-probe technique, and a remarkable enhancement of Jc at low fields was detected for the Pb-added tapes.
学科主题	材料合成与加工工艺
收录类别	1
公开日期	2010-09-29
附注	Polycrystalline Sr0.6K0.4Fe2As2 samples with various Pb additions (0-20 wt%) were prepared using a one-step solid state reaction. X-ray diffraction analysis shows no evidence for a chemical reaction between the Pb and the FeAs-based superconductor. However, the presence of Pb can affect the microstructure and superconducting properties of the final products. The critical transition temperature T-c indicates no degradation up to 20 wt% Pb addition, and dramatic improvements of magnetic J(c) and irreversibility field H-irr were observed for appropriate Pb concentrations. The transport critical current property of pure and Pb added Sr0.6K0.4Fe2As2 tapes was also measured by a four-probe technique, and a remarkable enhancement of Jc at low fields was detected for the Pb-added tapes.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/347]
专题	电工研究所_超导材料及强磁场科学研究组_超导材料及强磁场科学研究组_期刊论文
推荐引用方式 GB/T 7714	Ma YW. Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2010.
APA	马衍伟.(2010).Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2.SUPERCONDUCTOR SCIENCE & TECHNOLOGY.
MLA	马衍伟."Influence of Pb addition on the superconducting properties of polycrystalline Sr0.6K0.4Fe2As2".SUPERCONDUCTOR SCIENCE & TECHNOLOGY (2010).