Enhanced Microwave Magnetic Properties of Ni Ferrite Doped ZnO

Author

Chunhui Dong ; Xiujun Zheng ; Jianan Li ; Dangwei Guo ; Lei Wu ; Xingdong Jiang ; Changjun Jiang ; Desheng Xue

Author_Institution

Key Lab. for Magn. & Magn. Mater. of MOE, Lanzhou Univ., Lanzhou, China

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

4238

Lastpage

4241

Abstract

NiFe₂O₄ and ZnO compounds with different content rates were fabricated. Ni ferrite and ZnO particles used to synthesis samples were prepared through co-precipitation method and wet chemical method, respectively. The XRD and VSM results showed that Fe and Zn ions mutual penetrated to other side which caused the XRD peak to shift and an increase of saturation magnetization. The calculated frequency dependence spectrum of the reflection loss showed an enhancement of optimum reflection loss value (20 dB at 5.5 GHz) and absorption frequency range (less than 10 dB from about 3.6 to 10.5 GHz) in the 70% NiFe₂O₄ content rate sample. The enhancement may be caused by the interfacial effect between NiFe₂O₄ and ZnO particles.

Keywords

II-VI semiconductors; X-ray diffraction; ferrites; magnetic hysteresis; nickel compounds; precipitation (physical chemistry); semiconductor doping; wide band gap semiconductors; zinc compounds; VSM; XRD analysis; ZnO:NiFe₂O₄; absorption frequency; coprecipitation method; enhanced microwave magnetic properties; frequency 10.5 GHz; frequency 5.5 GHz; magnetic hysteresis loops; optimum reflection loss value; saturation magnetization; wet chemical method; Absorption; Ferrites; Magnetic properties; Microwave theory and techniques; Nickel; X-ray scattering; Zinc oxide; ${rm NiFe}_{2}{rm O}_{4}$; Microwave absorption; ZnO;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2245309

Filename

6558966