Conflicting evidence for ferroelectricity

D'Avino, G; Souto, M; Masino, M; Fischer, JKH; Ratera, I; Fontrodona, X; Giovannetti, G; Verstraete, MJ; Painelli, A; Lunkenheimer, P; Veciana, J; Girlando, A

D'Avino, G (reprint author), Univ Liege, Nanomat QMAT CESAM, B-4000 Liege, Belgium.; D'Avino, G (reprint author), European Theoret Spect Facil, B-4000 Liege, Belgium.; D'Avino, G (reprint author), CNRS, Inst Neel, F-38042 Grenoble, France.; D'Avino, G (re

NATURE, 2017; 547 (7662): E9