Electrical, Dielectrical and Magnetic Properties of Zr-Mn Doped Nano-Ferrites

被引：0
|
作者：
Khan, K. [1 ]
Maqsood, Asghari [1 ]
机构：
[1] Natl Univ Sci & Technol, Sch Chem & Mat Engn, Thermal Transport Lab, Islamabad, Pakistan
来源：
ADVANCED MATERIALS XII | 2012年 / 510-511卷
关键词：
Nanoferrites; Dielectric permittivity; magnetic susceptibility; NICKEL FERRITES; NI FERRITES; CONDUCTIVITY; BEHAVIOR;
D O I：
10.4028/www.scientific.net/KEM.510-511.301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We measured the dc electrical resistivity as a function of temperature and dielectric parameters in the frequency range 100 Hz to 3 MHz of nanosized Zr-Mn spinel ferrites with nominal composition CoFe2-2xZrxMnxO4 (0.1 <= x <= 0.4). The dc electrical resistivity decreased with I the rise in temperature for all the samples, showing a semiconductor like behavior. From the dc electrical resistivity the activation energy and drift mobility are determined. Both the drift mobility and activation energy increase with a rise in x. The dielectric constant, dielectric (losses) and ac electrical resistivity as a function of frequency are also reported. The low field ac magnetic susceptibility measurement showed that the ferrimagentic transition temperature is in the range of 439 +/- 5 K to 658 +/- 5 K.
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页码：301 / 306
页数：6
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