We have just published our latest results on multiferroic Aurivillius ceramics in Dalton Transactions. Following our previous work, where we demonstrated a novel approach for introducing magnetic species in the pseudoperovskite layer of Aurivilius compounds (Bi4Ti2−xMnxNb0.5Fe0.5O12) without increasing the number of oxygen octahedra, we report now a new series of layered oxides containing increasing levels of Fe³⁺ and Mn⁴⁺. We argue that it is too small for its introduction into the cristal structure, with tailored magnetic interactions until the appearance of ferromagnetic ordering.

Multiferroic Aurivillius Bi4Ti2-xMnxFe0.5Nb0.5Ob12 (n=3) compounds with tailored magnetic interactions
M. Alguero, J. Sanz-Mateo, R. Pérez del Real, J. Ricote, C. Fernández-Posada, A. Castro
Dalton Transactions 50, 17062-17074 (2021)