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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
2012
发表期刊MATERIALS CHEMISTRY AND PHYSICS
卷号136期号:2-3页码:487-491
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.
关键词Ceramics Powder diffraction Crystal structure Dielectric properties Magnetic properties
学科领域Materials Science
DOI10.1016/j.matchemphys.2012.07.015
收录类别SCI
WOS记录号WOS:000311865400031
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223997
专题实验物理中心
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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.
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