Altermagnetism exhibits unique physical properties such as spin-momentum locking, anomalous Hall effect, nontrivial topological phase, and giant magnetoresistance. Among all the predicted candidates,
ZnGa2S4 and ZnGa2Se4 have the vacancy defect stannite structure, belonging to the II-III2-VI4 family of compounds. These materials have been investigated via density functional theory (DFT). The elect