A First-Principle Study Investigating the Half-Metallic and Mechanical Properties of Double Halide Perovskites Rb2OsX6 (X = cl, Br, and I) for Spintronic Applications. - Mohamed Boubchir; Zeyneb Bordjiba; Rabie Amraoui; Rachid Boubchir; Hafid Aourag (J. Comput. Chem., 2025)