The magnetic properties of Co-doped CdS has been investigated by ab initio calculations using the GGA + U approximation. The study reveals the ferromagnetic ordering of Co-doped CdS at lower concentrations of Co, whereas, at higher concentrations, the antiferromagnetic interactions dominate. The electronic structures reveal the half metallic character signifying 100% spin polarization. Significant \(p{-} d\) hybridization between d states of Co and p states of S is observed in the density of states indicates the Co-induced ferromagnetism in CdS. The lower formation energy promises superior stability and shows that Co-doped CdS can be easily fabricated experimentally.
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Saikia, D., Parnami, S. & Borah, J.P. Half-Metallic Ferromagnetism in the Co-Doped CdS Diluted Magnetic Semiconductor. Jetp Lett. 116, 444–448 (2022). https://doi.org/10.1134/S0021364022601725
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DOI: https://doi.org/10.1134/S0021364022601725