Article, First-principles investigation of structural, electronic and optical properties of rhombohedral Na0.5Bi0.5TiO3: First-principles investigation of structural, electronic and optical properties of rhombohedral Na0.5Bi0.5TiO3. JNA. 2026;2(1):50-64. doi:10.65273/hhit.jna.2026.2.1.029