June 21, 2024
Hamed Bahiraei

Hamed Bahiraei

Academic rank: Associate Professor
Address:
Education: Ph.D in فیزیک
Phone: 09376003569
Faculty: science

Research

Title The Effect of rare Earth Lanthanum on the Structure, Microstructure and Magnetic Properties of Magnesium Zinc Based Ferrite Nanoparticles
Type Article
Keywords
Curie temperature Nanocrystalline material Permeability Spinel structure
Journal journal of nanostructures
Researchers Hamed Bahiraei

Abstract

n this study, a series of Mg0.3Cu0.2Zn0.5Fe2-xLaxO4 ferrite nanoparticles with x= 0 to 0.15, with step 0.015 were synthesized by sol-gel auto combustion method. The effect of rare earth La which was substituted for Fe3+, on the structural, microstructure and magnetic properties of prepared samples were investigated. The structural characteristics of samples were studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD patterns showed the formation of cubic spinel structure for all samples without any extra peak. The microstructural evaluations showed homogeneous particles and also revealed that their size are about 36 – 51 nm. The magnetic properties of samples were investigated using vibration sample magnetometer (VSM) and Impedance analyzer. Results show that On La substitution, the values of saturation magnetization (MS) were slightly decreased. The real part of permeability as well as Curie temperature were dramatically decreased with increasing x.