Structural, Electrical and Dielectric Properties of Pyrochlore   LaCrZr2-xGexO7 Nanospheres

doi:10.1166/jnn.2017.13826

CORC > 北京大学 > 化学与分子工程学院

	Structural, Electrical and Dielectric Properties of Pyrochlore LaCrZr2-xGexO7 Nanospheres
	Farid, Muhammad Asim ; Rafique, Muhammad Yasir ; Irfan, Muhammad ; ul Hassan, Sadaf ; Firdous, Attia ; Hasan, Murtaza
刊名	JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
	2017
关键词	Lanthanum Chromium Zirconates Electrical Resistivity Dielectric Measurements HYDROTHERMAL SYNTHESIS THERMAL-CONDUCTIVITY OXIDES NANOPARTICLES NANOMATERIALS TRANSITION CONSTANT BEHAVIOR SYSTEM
DOI	10.1166/jnn.2017.13826
英文摘要	A series of pyrochlore LaCrZr2-xGexO7 (0.0 <= x <= 1.0) zirconate nanospheres have been synthesized by hydrothermal process. All the zirconate nanospheres crystallize in single phase cubic structure as confirmed by powder X-ray diffraction studies. Electrical conductivity has been analyzed in the temperature range from 300 to 673 K. The relation of DC electrical conductivity with temperature revealed a metal-to-semiconductor behavior with increase in Ge substituents concentration. Further, dielectric properties determined in the frequency range of 60 KHz to 1 MHz are in good agreement with electrical conductivity. These results indicate potential use of these zirconate spheres in switching application due to increased electrical resistivity and decreased dielectric constant on Ge substitution. AC conductivity and electric modulus Cole-Cole plots as a function of frequency reveal the dominant contribution of grain boundaries in the hoping conduction mechanism. It is also observed that the AC activation energy is lower than the DC activation energy.; SCI(E); ARTICLE; 8; 5740-5744; 17
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471930]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Farid, Muhammad Asim,Rafique, Muhammad Yasir,Irfan, Muhammad,et al. Structural, Electrical and Dielectric Properties of Pyrochlore LaCrZr2-xGexO7 Nanospheres[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2017.
APA	Farid, Muhammad Asim,Rafique, Muhammad Yasir,Irfan, Muhammad,ul Hassan, Sadaf,Firdous, Attia,&Hasan, Murtaza.(2017).Structural, Electrical and Dielectric Properties of Pyrochlore LaCrZr2-xGexO7 Nanospheres.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY.
MLA	Farid, Muhammad Asim,et al."Structural, Electrical and Dielectric Properties of Pyrochlore LaCrZr2-xGexO7 Nanospheres".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY (2017).