International Journal of Modern Physics B, vol.39, no.22, 2025 (SCI-Expanded, Scopus)
The electronic properties and magnetism for CrxZn1-xSe and VxZn1-xSe (x=6.25; 12.5%) supercell structures containing 32 and 64 atoms, VyCrxZn1-x-ySe co-substituted supercell structures containing 32 atoms were studied using density functional perturbation theory. Electronic properties predicted the semi-metallic character for CrxZn1-xSe, VxZn1-xSe and VyCrxZn1-x-ySe. From calculations, it is observed that after the inclusion of the metal atoms into the crystal structure, the band bending characteristics are enhanced and more prominent. The obtained spin moments for VxZn1-xSe, CrxZn1-xSe compounds with 12.5 and 6.25% concentrations of impurities are 3 and 4μB, respectively. The co-substituting of vanadium of chromium metals in supercell structure increases the magnetization of VyCrxZn1-x-ySe system. The Curie temperatures are calculated for CrxZn1-xSe, VxZn1-xSe compounds. Our results predicted that CrxZn1-xSe, VxZn1-xSe and VyCrxZn1-x-ySe compounds are high Curie temperature diluted magnetic semiconductor materials for application in the production of Zn-based spintronic devices.