Polarization relaxation mechanism of Ba0.6Sr0.4TiO3/Ni0.8Zn0.2Fe2O4 composite with giant dielectric constant and high permeability

被引：69

作者：

Yang, Haibo ^{[1
,2
]}

Wang, Hong ^{[1
]}

He, Li ^{[1
]}

Shui, Li ^{[1
]}

Yao, Xi ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian 710049, Peoples R China

[2] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 07期

关键词：

MULTIFERROIC COMPOSITES; MAGNETIC-PROPERTIES; CERAMICS; FERRITES;

D O I：

10.1063/1.3490782

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ba0.6Sr0.4TiO3/Ni0.8Zn0.2Fe2O4 (BST/NZO) composites were synthesized via the conventional solid-state reaction method. The phase composition and surface morphology of the composites were investigated using x-ray diffractometry and scanning electron microscope, respectively. The dielectric and magnetic properties of the composites were studied. The results show that the BST/NZO composites have giant dielectric constants and very high permeabilities. For the 10% BST/90%NZO composite, the dielectric constant and permeability in low frequency range are about 150 000 and 29, respectively. The giant dielectric behavior of the BST/NZO composites is mainly attributed to the Maxwell-Wagner polarization. (C) 2010 American Institute of Physics. [doi:10.1063/1.3490782]

引用

页数：6

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