Synthesis and characterization of Co1-2xNixMnxCeyFe2-yO4 nanoparticles

作     者：Munirah Abdullah Almessiere Yassine Slimani Abdulhadi Baykal Munirah Abdullah Almessiere;Yassine Slimani;Abdulhadi Baykal

作者机构：Department of PhysicsCollege of ScienceImam Abduirahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of BiophysicsInstitute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of Nano-Medicine ResearchInstitute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia 

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

年 卷 期：2020年第38卷第2期

页      面：188-194页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0708[理学-地球物理学] 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：the Institute for Research & Medical Consultations(IRMC)of Imam Abdulrahman Bin Faisal University(IAU-Saudi Arabia)for supporting this study through the Projects application No.2017-IRMC-S-3 No.2018-IRMC-S-1 and No.2018-IRMC-S-2 

主　　题：Cobalt ferrite Spinel ferrites Rare earth substitution Magnetic properties Rare earths 

摘      要：Spinel ferrite Co1-2 xNixMnxFe2-yCeyO4(0.0≤x=y≤0.3) nanoparticles(NPs) were prepared by sol-gel auto-combustion *** synthesized NPs were examined using several techniques such as X-ray diffraction(XRD),field emission scanning electron microscopy(FE-SEM) coupled with EDX and elemental mapping,transmission electron microscopy(TEM),Fourier-transform infrared spectroscopy(FT-IR),and a vibrating sample magnetometer(VSM).The analysis of the crystal structure and the phase identification of samples indicates the formation of spinel cubic phase with the occurrence of CeO2 as secondary phase when the content of Ce substitution element *** addition,all produced samples exhibit cubic symmetry with space group *** confirms the presence of two phases,i.e.,the cubic spinel ferrite and the cubic cerium oxide(CeO2).The characteristics of hysteresis loops reveal the soft ferrimagnetic nature of the different synthesized *** saturation(Ms) and remanent(Mr) magnetizations fall on increasing the content of substituting *** with pure CoFe2O4 NPs,the value of coercive field(Hc) slightly increases for x=y=0.1 and x=y=0,2 ***,Hc reduces with further increasing the x and y *** squareness ratio is found to be in the 0.528-0.400 interval,indicating the single domain NPs with uniaxial anisotropy for the different produced *** magneto crystalline anisotropy constant(Keff),anisotropy field(Ha),magneton number(nB) and the demagnetizing field(N) were also determined and discussed.