Milesi-Brault, Cosme Archetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu_Bi(SeO_)_O_Cl. [electronic resource] - Physical review letters Mar 2020 - 097603 p. digital Publication Type: Journal Article ISSN: 1079-7114 Standard No.: 10.1103/PhysRevLett.124.097603 doi