Optical and electronic structure studies of half metallic in Sr2CoWO6 double perovskite

The density function theory (DFT) under the generalised gradient approximation has been used to investigate the electronic structure of the double perovskite half metallic Sr2CoWO6 synthesied by the solid state reaction technique. The band gap of the system was measured from the Uv-Vis spectra and compared with the theoretically calculated values. Our results states that Sr2CoWO6 material behaves as insulators for the spin-up orientation and spindown orientation as found for the half metallic systems.