Journal
PHYSICAL REVIEW B
Volume 77, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.77.125211
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Carbon doping of CdS is studied using first-principles calculations and Monte Carlo simulation. Our calculations predict ferromagnetism in C doped CdS, resulting from carbon substitution of sulfur. A single carbon substitution of sulfur favors a spin- polarized state with a magnetic moment of 1.22 mu(B). Ferromagnetic coupling is generally observed between these magnetic moments. A transition temperature of 270 K is predicted through Monte Carlo simulation. The ferromagnetism of C doped CdS can be explained by the hole- mediated double exchange mechanism.
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