Tuning structural,electrical,dielectric and magnetic properties of Mg-Cu-Co ferrites via dysprosium(Dy^(3+))doping

作     者：Maria Akhtar M.S.Hasan Nasir Amin N.A.Morley Muhammad Imran Arshad Maria Akhtar;M.S.Hasan;Nasir Amin;N.A.Morley;Muhammad Imran Arshad

作者机构：Department of PhysicsGovernment College UniversityFaisalabad38000Pakistan Department of PhysicsThe University of Lahore53700Pakistan Department of Materials Science and EngineeringThe University of SheffieldS13JDUK Department of Physics&AstronomyUniversity College LondonUK 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2024年第42卷第1期

页      面：137-146,I0005页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：M. Imran Arshad is highly grateful to HEC  Pakistan for giving him opportunity of Postdoc under post doc batch 3 Ref: 3-1/PDFP/HEC/2022 (B-3)/2320/02 

主　　题：Soft ferrites DC resistivity Dielectric loss Impedance Coercivity Rare earths 

摘      要：In current research work,Dy3+substituted Mg0.5Cu0.25Co0.25Fe2-xDyxO4(0.0≤x≤0.04 with the step interval of 0.01)soft ferrites were synthesized by the sol-gel auto combustion *** prepared samples were characterized by the techniques using X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDS),Fourier transform infrared(FTIR)spectroscopy,curre nt-voltage(Ⅰ-Ⅴ)measurement,LCR meter,vibrating sample magnetometer(VSM)and *** data reveal that the average crystallite size is 49.71 nm and the lattice constant is 0.83703 nm for sample x=*** non-uniform grain growth was demonstrated by micrographs and impurity-free elemental composition was observed from EDX *** DC resistivity has an increasing and decreasing trend in ferromagnetic and paramagnetic regions with an increase in ***,the high resistivity is observed with the order of 1010Ω·cm,and the activation energy is 0.944 eV for samples x=*** dielectric parameters including dielectric constant,dielectric losses,and impedance gradually decrease with the increase in frequency from 8 Hz to 8 *** minimum dielectric loss at high frequency is found for sample x=*** coercivity(Hc)and saturation magnetization(Ms)are found in the ranges of 520.82-544.02 Oe and 20.5841-21.1473 emu/g,*** observations confirm that dysprosium(x=0.03)doped MCC-soft ferrites may be applicable in transformer cores,microwave absorbance,and telecommunication devices.