English Abstract
Abstract:
Lanthanum oxide (Lanthana-La2O3) doped with Fe and Co nanoparticles was synthesized by a co-precipitation method. These synthesized samples were systematically characterized and studied using several measuring techniques: X‐ray fuorescence (XRF), X-ray difraction (XRD), and UV-visible optical spectroscopy. Moreover, magnetization measurements were performed to study the elemental content analysis, crystalline structure, and optical bandgap and created ferromagnetic magnetic properties respectively. These measurements were aimed to investigate the structural and optical properties and
the possibility of the creation of room-temperature ferromagnetic (RT-FM) properties in a host lanthana ceramic doped by Fe and Co ions, which could transform the La2O3 ceramic into a dilute magnetic semiconductor (DMS). The bandgap of the synthesized lanthana nanoparticles (NPs) was found to be signifcantly redshifted (~50–60%) by Fe/Co doping. The main objective of the present study is to investigate the signifcant efect of hydrogenation on the ferromagnetic properties of Feand Co-doped lanthanum-oxide ceramics. The results in this work indicate that the hydrogenation of the host NPs played
an essential role in creating the RT-FM properties. The experimental results also showed that the magnetization obtained in La2O3 doped with Co ions was enhanced approximately by about three times higher than when Fe ions were doped. The obtained results were reported and discussed.
