Ab initio investigation of the structural, mechanical, electronic, thermodynamic, and optical properties of V2FeNiGe2 and Hf2FeNiSb2 double half-Heusler compounds. - Diaf, Mohamed; Righi, Haroun; Beddiaf, Raouf; Djaballah, Yassine; Rached, Habib (Canadian Journal of Physics, 2025)