The effect of sintering temperature on magnetic and dielectric properties of Ho3Fe5O12 ceramics

被引：28

作者：

Su, Jie ^{[1
]}

Lu, Xiaomei ^{[1
]}

Zhang, Chao ^{[1
]}

Zhang, Junting ^{[1
]}

Peng, Song ^{[1
]}

Wu, Xiaobo ^{[1
]}

Min, Kangli ^{[1
]}

Huang, Fengzhen ^{[1
]}

Zhu, Jinsong ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2011年 / 46卷 / 10期

基金：

美国国家科学基金会;

关键词：

YTTRIUM-IRON-GARNET; ELECTRICAL-PROPERTIES; FERRITES; FERROELECTRICS; PERMITTIVITY;

D O I：

10.1007/s10853-011-5254-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ho3Fe5O12 ceramics were fabricated by the solid-state reaction method. The results revealed an increase of the grain size, dielectric constant, and dielectric loss, while a decrease of the remnant magnetization and coercive field with increasing sintering temperature. A dielectric relaxation behavior was observed, which might be associated with the charge carrier hopping between Fe2+ and Fe3+. A cole-cole fitting to loss peaks revealed a dependence of the activation energy and the broaden factor on the relative density of the samples. Furthermore, at appropriate frequencies, the 1250 A degrees C-sintered samples showed high dielectric constant, low dispassion, and good temperature stability around room temperature.

引用

页码：3488 / 3492

页数：5

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