Study of nano-sized (ZnFe2O4)(y) particles/CuTl-1223 superconductor composites

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	Study of nano-sized (ZnFe2O4)(y) particles/CuTl-1223 superconductor composites
	Mumtaz, M ; Naeem, S ; Nadeem, K ; Naeem, F ; Jabbar, A ; Zheng, YR ; Khan, NA ; Imran, M
刊名	SOLID STATE SCIENCES
	2013
卷号	22 页码:21
关键词	CuTl-1223 superconductor ZnFe2O4 nanoparticles Composites
ISSN号	1293-2558
通讯作者	Mumtaz, M (reprint author), IIUI, FBAS, Mat Res Lab, Dept Phys, Islamabad 44000, Pakistan.
中文摘要	Zinc ferrite (ZnFe2O4)(y) nanoparticles/Cu0.5Tl0.5Ba2Ca2Cu3O10-delta (CuTl-1223) superconductor composites with y = 0-2 wt.% were prepared by adding ZnFe2O4 nanoparticles into CuTl-1223 superconductor matrix and characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier transforms infrared (FTIR) spectroscopy and dc-resistivity (rho) measurements. The bulk CuTl-1223 superconductor matrix was synthesized by solid-state reaction and Zinc ferrite (ZnFe2O4) nanoparticles were separately prepared by sol-gel method. XRD analysis revealed the tetragonal and spinel structure of CuTl-1223 superconductor and ZnFe2O4 nanoparticles, respectively. The XRD analysis showed that increased concentration of ZnFe2O4 nanoparticles doesn't disturb the tetragonal structure of host CuTl-1223 superconductor matrix and has no appreciable effect on its lattice parameters. The SEM images confirm the granular structure of the host superconductor matrix. The presence of ZnFe2O4 nanoparticles in host superconductor matrix is confirmed by using FTIR study. Variation of zero resistivity critical temperature {T-c (0)) depends upon the concentration of the nanoparticles in the host superconductor matrix. The overall suppression of T-c (0) and diamagnetism with increasing nanoparticles concentration is most probably due to trapping of mobile free carriers and reflection of spin charge due to presence of paramagnetic ZnFe2O4 nanoparticles. There is possibility for the incorporation of Fe and Zn in the lattice sites during the synthesis process, which may also cause the reduction of T-c (0) of the final composites. (C) 2013 Elsevier Masson SAS. All rights reserved.
资助信息	Higher Education Commission of Pakistan (HEC) [PM-IPFP/HRD/HEC/2012/3511]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57499]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Mumtaz, M,Naeem, S,Nadeem, K,et al. Study of nano-sized (ZnFe2O4)(y) particles/CuTl-1223 superconductor composites[J]. SOLID STATE SCIENCES,2013,22:21.
APA	Mumtaz, M.,Naeem, S.,Nadeem, K.,Naeem, F.,Jabbar, A.,...&Imran, M.(2013).Study of nano-sized (ZnFe2O4)(y) particles/CuTl-1223 superconductor composites.SOLID STATE SCIENCES,22,21.
MLA	Mumtaz, M,et al."Study of nano-sized (ZnFe2O4)(y) particles/CuTl-1223 superconductor composites".SOLID STATE SCIENCES 22(2013):21.