Structural,magnetic,electrical and microwave properties of spinel ferrites  

作　　者：Salma Aman Naseeb Ahmad M.H.Alhossainy Hind Albalawi Manal Morsi Tahani I.Al-Muhimeed Abeer A.AlObaid 

机构地区：[1]Department of Physics,Khwaja Fareed University of Engineering and Information Technology,Abu Dhabi Road,Rahim Yar Khan,64200,Pakistan [2]Department of Physics,Faculty of Science,Taibah University,Medina,Saudi Arabia [3]Department of Physics,College of Science,Princess Nourah bint Abdulrahman University,11671,Riyadh,Saudi Arabia [4]Department of Physics,College of Arts and Science,Prince Sattam Bin Abdulaziz University,Riyadh,Wadi Addawasir,Saudi Arabia [5]Department of Chemistry,College of Science,King Saud University,P.O.Box 22452,Riyadh,11495,Saudi Arabia

出　　处：《Journal of Rare Earths》2022年第3期443-450,I0003,共9页稀土学报（英文版）

基　　金：funded by the Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Fasttrack Research Funding Program。

摘　　要：The ferrite series having formulation SrYb_(y)Fe_(2-y)O_(4)(y=0.00 to 0.10)were synthesized via the sol-gel procedure.The involvement of the yttrium in the base produces several changes in the structural,magnetic,and electrical performance of the system.Investigation of structural parameters was done through X-ray diffraction.All samples have cubic structures confirmed from X-ray diffraction.The coercivity of sample enlarges with the involvement of Yb-ions while their saturation and remanence magnetization values drop.When the concentration of Yb-ion increases in the lattice,the real and imaginary values of permittivity reduce.The increased content of Yb enhances the impedance value.The analysis of the M vs H loop was finished under the fixed range of−2 to+2 kOe.By using 0.5-12 GHz frequency,the microwave measurements of all the sample were performed.The dispersion of frequency of ferrites is responsible for the natural magnetic resonance phenomenon and the domain wall pinning.The evaluated features of synthesized sample show their appropriateness for microwave absorption appliances.

关 键 词：Microwave absorption Dielectric constant CONDUCTIVITY MAGNETIZATION IMPEDANCE Rare earths 

分 类 号：TB34[一般工业技术—材料科学与工程]