Abstract
We have synthesized Yttrium and Cobalt-co-doped ZnO nanorods (NRs) by co-precipitation method and studied the effect of Yttrium and Cobalt co-do** on the structure, dielectric, and magnetic responses. X-ray diffraction and transmission electron microscopy suggested a decrease in lattice parameters and an increase in the particle size of all Co-ZnO nanorods. It was observed that high co-do** decreased the dielectric properties and increased the electrical conductivity due to the generation of free charge carriers through the substitution of Yttrium and Cobalt ions in the host ZnO. It was also discovered that co-doped ZnO Nanorods experienced a considerable transformation that was defined by the shift from ZnO’s diamagnetic behavior to room-temperature ferromagnetism (RTFM) behavior. In the ZnO lattice samples, room-temperature ferromagnetism (RTFM) has been mostly created by vacancies and zinc interstitials due to the do** of transition metals. However, with changes in dopant concentration only from 1 to 4% and then 5%, remanent magnetization (Mr) first increased from 0.038 emu/g to 0.118emu/g and then decreased drastically to 0.0346emu/g. It was found that the increasing O2 vacancies are highly associated with the improved magnetic and electric characteristics of the sample of Zn0.91Y0.05Co0.04O. It was discovered that Zn0.91Y0.05Co0.04O nanotubes have higher electrical conductivity and magnetic properties than pure ZnO. This strong dielectric and ferromagnetism response implies that the charge carriers’ hop** is responsible for this transport, which is commonly referred to as a high-frequency devices and diluted magnetic semiconductors supporting spintronic applications.
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The researchers would like to acknowledge the Deanship of Scientific Research, Taif University for funding this work.
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AU, IUK, MA, KA, NR, SSA, and AK wrote this paper through their mutual discussion. AK and RK created the idea and submitted the paper.
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Ullah, A., Khan, I.U., Aljohani, M. et al. Effect of yttrium on the structural, dielectric, and magnetic properties of Co-doped ZnO magnetic nanorods for potential spintronic applications. J Mater Sci: Mater Electron 34, 1252 (2023). https://doi.org/10.1007/s10854-023-10664-8
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DOI: https://doi.org/10.1007/s10854-023-10664-8