Influence of Y^(3+),Yb^(3+),Gd^(3+) cations on structural and electromagnetic properties of CuFe_(2)O_(4) nanoferrites prepared via one step sol-gel method  

作　　者：Aleena Kiran Majid Niaz Akhtar Muhammad Yousaf Khalid Mujassam Batoo Omar MAldossary Salman Naeem Khan 

机构地区：[1]Department of Physics,COMSATS University Islamabad,Lahore Campus,Defence Road Off Raiwind,Lahore,54000,Pakistan [2]Department of Physics,Mohammad Nawaz Sharif University of Engineering and Technology,Multan,60000,Pakistan [3]School of Energy and Environment,Southeast University,No2 Si Pai Lou,Nanjing 210096,China [4]King Abdullah Institute for Nanotechnology,King Saud University,P.O.Box 2455,Riyadh,11458,Saudi Arabia [5]Department of Physics and Astronomy,College of Science,King Saud University,P.O.Box-2455,Riyadh,11451,Saudi Arabia [6]Micro-mm Wave Laboratory(M2L),Department of Physics,COMSATS University Islamabad,Lahore Campus,Defence Road Off Raiwind,Lahore,54000,Pakistan

出　　处：《Journal of Rare Earths》2021年第10期1224-1231,I0003,共9页稀土学报（英文版）

基　　金：the Researcher Supporting Project number (RSP-2020/61),King Saud University,Riyadh,Saudi Arabia for the financial support。

摘　　要：Rare earths(REs) play a key role in distorting spinel structure by creating some defects at the lattice sites and make them suitable for magnetodielectric applications.In the present study,the nanoferrites of CuRE0.02Fe1.98O4,where REs=Y^(3+),Yb^(3+),Gd^(3+),were prepared using one step sol-gel method.The prepared samples are copper ferrite(CFO),yttrium doped copper ferrite(Y-CFO),ytterbium doped copper ferrite(Yb-CFO) and gadolinium doped copper ferrite(Gd-CFO),respectively.The single-phase structure of all the REs doped nanoferrites was determined by X-ray diffraction(XRD) analysis.The porosity,agglomerations and grain size of the REs doped copper ferrite were examined using field emission scanning electron microscopy(FESEM) analysis.Fourier transform infrared spectroscopy(FTIR)elaborates the phase formation and environmental effects on the REs doped nanoparticles(NPs).The recorded room temperature M-H loops from a vibrating sample magnetometer(VSM) elucidate the magnetic properties of the REs doped spinel nanoferrites.The magnetic saturation(Ms) was calculated in the range of 23.08 to 51.78 emu/g.The calculated coercivity values(272.6 to 705.60 Oe) confirm the soft magnetic behavior of REs doped copper ferrites.Furthermore,the electromagnetic and dielectric properties were assessed using a Vector network analyzer(VNA) from 1 to 6 GHz.The permeability,permittivity,dielectric tangent loss and electric modulus of the REs doped spinel ferrites illustrate that the prepared NPs may be suitable for microwave and high frequency applications.

关 键 词：Rare earth elements Nanoparticles Spinel ferrites VSM VNA Magnetodielectric applications 

分 类 号：TB383.1[一般工业技术—材料科学与工程]