Presence of neodymium and gadolinium in cobalt ferrite lattice:Structural,magnetic and microwave features for electromagnetic wave absorbing
来源期刊：Journal of Rare Earths2020年第4期
论文作者：Alireza Nikzad Roghaieh Parvizi
文章页码：411 - 417
摘 要：In this work,neodymium substituted gadolinium-cobalt ferrite nanoparticles were synthesized by hydrothermal method.The significant role of doping both the Nd3+and Gd3+ ions to cobalt ferrite in manipulating the cation distribution and further in influencing structural and magnetic properties was experimentally studied and reported.The influence of Nd3+ substitution was investigated with step of 0.02-0.1 into the optimized Gd-Co compound.The crystal structure formation and crystallite size were explored by X-ray diffraction analysis in which the crystallite size and lattice constant decrease with increasing the Nd3+ substitution.The microstructural properties were studied by field emission scanning electron microscopy and atomic force microscopy studies.The obtained structural and morphological results reveal that the substitution of Nd3+ with more than 0.06 into the Gd-Co ferrites will change the material be havior and trends.The saturation magnetization and coercivity values were measured using a vibration sample magnetometer at room temperature.Comparative microwave absorption experiments demonstrate that the reflection loss properties enhance with increasing substitution of Nd3+ cations in Gd-Co ferrite spinel structure.This research reports that the as-prepared Nd3+ substituted Gd-Co ferrite compound stands as promising candidate for absorbing electromagnetic wave with a wider absorbing bandwidth of X-band.
Alireza Nikzad，Roghaieh Parvizi
Department of Physics,College of Sciences,Yasouj University
摘 要：In this work,neodymium substituted gadolinium-cobalt ferrite nanoparticles were synthesized by hydrothermal method.The significant role of doping both the Nd3+and Gd3+ ions to cobalt ferrite in manipulating the cation distribution and further in influencing structural and magnetic properties was experimentally studied and reported.The influence of Nd3+ substitution was investigated with step of 0.02-0.1 into the optimized Gd-Co compound.The crystal structure formation and crystallite size were explored by X-ray diffraction analysis in which the crystallite size and lattice constant decrease with increasing the Nd3+ substitution.The microstructural properties were studied by field emission scanning electron microscopy and atomic force microscopy studies.The obtained structural and morphological results reveal that the substitution of Nd3+ with more than 0.06 into the Gd-Co ferrites will change the material be havior and trends.The saturation magnetization and coercivity values were measured using a vibration sample magnetometer at room temperature.Comparative microwave absorption experiments demonstrate that the reflection loss properties enhance with increasing substitution of Nd3+ cations in Gd-Co ferrite spinel structure.This research reports that the as-prepared Nd3+ substituted Gd-Co ferrite compound stands as promising candidate for absorbing electromagnetic wave with a wider absorbing bandwidth of X-band.
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