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VOLUME 116 (2022) | ISSUE 7 | PAGE 442
Half-metallic ferromagnetism in Co doped CdS diluted magnetic semiconductor1)
Abstract
In the present study, magnetic properties of Co doped CdS has been investigated by first principle calculations using 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 DOS results as the indication of the Co induced ferromagnetism in CdS. The smaller value of formation energy promises superior stability and indicates that Co doped CdS can be easily fabricated experimentally.