Novel Double Structural Transition at Room Temperature in a Bi1−xGdxFeO3 System Prepared by the Pechini Method. - Dinia, Selma; El-Bey, Ayoub; Oubla, M'hamed; Taibi, M'hamed; Elbahraoui, Toufik; Atourki, Lahoucine; Belayachi, Wissal; Abd-Lefdil, Mohammed (Journal of Electronic Materials, 2025)