Ferroelectricity and multiferroicity in anti-Ruddlesden-Popper structures

M. Markov, L. Alaerts, H. P. C. Miranda, G. Petretto, W. Chen, J. George, E. Bousquet, Ph. Ghosez, G.-M. Rignanese and G. Hautier, PNAS 118, e2026020118 (2021).