Crystal structure, dielectric and magnetic properties of Ba5NdNi15Nb8.5O30 tungsten bronze ceramic

	Crystal structure, dielectric and magnetic properties of Ba5NdNi15Nb8.5O30 tungsten bronze ceramic
	Yan, M; Tan, YQ; Zhao, H; Peng, J; Xiao, XL; Hu, ZB;彭杰
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2012
卷号	136 期号:2-3 页码:487-491
关键词	Ceramics Powder diffraction Crystal structure Dielectric properties Magnetic properties
英文摘要	Ba5NdNi1.5Nb8.5O30 tungsten bronze ceramic was prepared by the conventional solid-state reaction. Rietveld analysis revealed that this ceramic crystallizes in space group p4bm. The dielectric and magnetic properties of Ba5NdNi1.5Nb8.5O30 were investigated in relation to its structure. A broad dielectric constant peak at 293 K was observed in the dielectric spectrum of Ba5NdNi1.5Nb8.5O30, suggesting a diffused normal ferroelectric transition. A modified Curie Weiss law was used to characterize the diffuseness of the phase transition with a frequency of 1 MHz and the diffusivity gamma was measured to be 1.102. The dielectric properties originate from the different crystal structures governed by the occupancy of cations at A(1) and A(2) sites. Ba5NdNi1.5Nb8.5O30 ceramic presents a weak antiferromagnetic interaction and the calculated effective moment is 4.77 mu B/f.u. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	Materials Science
收录类别	SCI
WOS记录号	WOS:000311865400031
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/223997]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	Yan, M,Tan, YQ,Zhao, H,et al. Crystal structure, dielectric and magnetic properties of Ba5NdNi15Nb8.5O30 tungsten bronze ceramic[J]. MATERIALS CHEMISTRY AND PHYSICS,2012,136(2-3):487-491.
APA	Yan, M,Tan, YQ,Zhao, H,Peng, J,Xiao, XL,&Hu, ZB；彭杰.(2012).Crystal structure, dielectric and magnetic properties of Ba5NdNi15Nb8.5O30 tungsten bronze ceramic.MATERIALS CHEMISTRY AND PHYSICS,136(2-3),487-491.
MLA	Yan, M,et al."Crystal structure, dielectric and magnetic properties of Ba5NdNi15Nb8.5O30 tungsten bronze ceramic".MATERIALS CHEMISTRY AND PHYSICS 136.2-3(2012):487-491.