We review the theoretical, computational, and synthetic literature on hybrid improper
ferroelectricity in layered perovskite oxides. Different ferroelectric mechanisms are described …

Ferroelectrics, with their spontaneous switchable electric polarization and strong coupling
between their electrical, mechanical, thermal, and optical responses, provide functionalities …

In the past year it has become possible to fabricate ferroelectric thin-film memories onto
standard silicon integrated circuits that combine very high speed (30-nanosecond …

Noncentrosymmetric materials are of special interest in materials chemistry owing to their
technologically important properties, such as ferroelectricity and second-order nonlinear …

AMPLIMODES is a computer program available on the Bilbao Crystallographic Server that
can perform a symmetry-mode analysis of any distorted structure of displacive type. The …

The description of displacive distorted structures in terms of symmetry-adapted modes is
reviewed. A specific parameterization of the symmetry-mode decomposition of these …

Crystal structures of ferroelectric materials of stoichiometric SrBi 2 Ta 2 O 9 (TC= 300° C)
and Sr-deficient-and-Bi-excess Sr 0.8 Bi 2.2 Ta 2 O 9 (TC= 400° C) were refined by neutron …

An analysis of halogen⋯ halogen (X⋯ X) intermolecular interactions in crystals, using the
Cambridge Structural Database (CSD). is presented. A total of 794 crystal structures yielded …

Crystal structures and ferroelectric properties of a series of Bi-layered compounds, CaBi 2
Ta 2 O 9, SrBi 2 Ta 2 O 9, and BaBi 2 Ta 2 O 9, were investigated. The structures of CaBi 2 …

Recent advances in the study of Aurivillius phases (Bi2A n-1BnO3 n+ 3, n= 1− 5) as oxide
ion conductors are presented. The structures of modified Aurivillius phases containing …