Ab initio study of the structural, electronic, and optical properties of MgTiO3 perovskite materials doped with N and PAbdellah Bouzaid, Younes Ziat, Hamza Belkhanchi, Hamid Hamdani, Ayoub Koufi, Mohammed Miri, Charaf Laghlimi and Zakaryaa ZarhriE3S Web Conf., 582 (2024) 02006DOI: https://doi.org/10.1051/e3sconf/202458202006