Domains in ferroelectrics were considered to be well understood by the middle of the last
century: They were generally rectilinear, and their walls were Ising-like. Their simplicity …

This review provides a summary of the rich physics expressed within SrTiO 3-based
heterostructures and nanostructures. The intended audience is researchers who are …

Ferroelectricity usually fades away as materials are thinned down below a critical value. We
reveal that the unique ionic-potential anharmonicity can induce spontaneous in-plane …

The realization of multiferroics in nanostructures, combined with a large electric dipole and
ferromagnetic ordering, could lead to new applications, such as high-density multistate data …

Ferroelectrics have a spontaneous electrical polarization that is arranged into domains and
can be reversed by an externally-applied field. This high versatility makes them useful in …

The vibrations of atoms inside crystals-lattice dynamics-are basic to many fields of study in
the solid state and mineral sciences, and lattice dynamics is becoming increasingly …

Negative thermal expansion (NTE) is the phenomenon in which materials shrink rather than
expand on heating. Although NTE had been previously observed in a few simple materials …

Doped SrTiO 3, one of the most dilute bulk systems to display superconductivity, is perhaps
the first example of an unconventional superconductor, as it does not fit into the standard …

We report a Raman scattering study of six rare-earth orthoferrites R FeO 3, with R= La, Sm,
Eu, Gd, Tb, Dy. The use of extensive polarized Raman scattering of SmFeO 3 and first …

Ferroelectricity is usually found in compound materials composed by different elements.
Here, based on first‐principles calculations, spontaneous electric polarization and …