Ferroelectric materials have remained one of the major focal points of condensed matter
physics and materials science for over 50 years. In the last 20 years, the development of …

A large coercive field (EC) and ultrahigh piezoelectricity are essential for ferroelectrics used
in high-drive electromechanical applications. The discovery of relaxor-PbTiO3 crystals is a …

Strain and electromechanical coupling are ubiquitous in nature, and exist in many
processes involved in information technology, energy conversion, and biological …

Dielectric capacitors are very attractive for high power energy storage. However, the low
energy density of these capacitors, which is mainly limited by the dielectric materials, is still …

Relaxor ferroelectric ceramics have attracted much attention for storing the electricity
generated from clean and renewable energy sources due to their high permittivity and near …

Relaxor-ferroelectrics are fascinating and useful materials, but the mechanism of relaxor-
ferroelectricity has been puzzling the scientific community for more than 65 years. Here, a …

For efficient solid-state refrigeration technologies based on electrocaloric effect (ECE), it is a
great challenge of simultaneously obtaining a large adiabatic temperature change (ΔT) …

Multi-functional thin films of boron (B) doped Cr2O3 exhibit voltage-controlled and
nonvolatile Néel vector reorientation in the absence of an applied magnetic field, H …

The photovoltaic conversion efficiency of perovskite solar cells based on organic–inorganic
CH3NH3PbI3 has risen spectacularly from 3.8% to over 20% in just seven years, yet quite a …

Tunable devices constructed by ferroelectric thin films are often desired to possess a low
dielectric loss while maintainging a high dielectric tunability over a broad operating …