Structural and Dielectric Properties of the Lutetium (Lu) and Yttrium (Y) Doped Nickel Ferrite

被引：2
|
作者：
Ugendar, Kodam [1 ]
Markandeyulu, G. [1 ]
机构：
[1] Indian Inst Technol Madras, Dept Phys, Madras 600036, Tamil Nadu, India
来源：
SOLID STATE PHYSICS: PROCEEDINGS OF THE 58TH DAE SOLID STATE PHYSICS SYMPOSIUM 2013, PTS A & B | 2014年 / 1591卷
关键词：
Ferrites; dielectric constant; relaxation; Impedance;
D O I：
10.1063/1.4872952
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The structural and dielectric characteristics of NiFe1.925R0.075O4 (R=Lu, Y) were investigated. The material crystallize in the cubic inverse spinel phase with a very small amount of RFeO3 (R=Lu, Y) as the additional phase. Frequency variation of the dielectric constant shows the dispersion that can be modeled with a modified Debye's function, which considers the possibility of more than one ion, contributing to the relaxation. Impedance spectroscopic analysis indicates the different relaxation mechanisms, bulk grain and grain-boundary contributions to the electrical conductivity and capacitance of these materials.
引用
收藏
页码：1342 / 1344
页数：3
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