There has been great progress in the last decade in the synthesis of nanopowders with
highly controlled size and size distribution. Meanwhile, the development of an …

A functional material with coexisting energetically equivalent phases often exhibits
extraordinary properties such as piezoelectricity, ferromagnetism, and ferroelasticity, which …

BaTi O 3 is shown to exhibit anomalous piezoelectric response, comparable to that of lead-
zirconate titanate, by dilute Sn modification (1–4 mol%). Using a newly discovered powder …

The piezoelectric compositions (1− x) Ba (Zr 0.2 Ti 0.8) O 3–x (Ba 0.7 Ca 0.3) TiO 3 (BZT-
xBCT) span a model lead-free morphotropic phase boundary (MPB) between room …

In ferroelectric materials, enhanced dielectric and piezoelectric property coefficients are
found in compositions near morphotropic phase boundaries (MPBs). The material response …

Dynamics of crystals is a subject of recent interest in solid-state physics and a challenge for
modern X-ray crystallography. Time-dependent response of solids to an external …

The atomic-scale response of dielectrics/ferroelectrics to electric fields is central to their
functionality. Here we introduce an in situ characterization method that reveals changes in …

Defects in acceptor-doped perovskite piezoelectric materials have a significant impact on
their electrical properties. Herein, the defect mediated evolution of piezoelectric and …

Polarization reversal in polycrystalline ferroelectrics is shown to occur via two distinct and
sequential domain reorientation steps. This reorientation sequence, which cannot be readily …

The contribution of 180° domain wall motion to polarization and dielectric properties of
ferroelectric materials has yet to be determined experimentally. In this paper, an approach …