Understanding electrocaloric cooling of ferroelectrics guided by phase‐field modeling

R Gao, X Shi, J Wang, H Huang - Journal of the American …, 2022 - Wiley Online Library
With the urgent need to explore low‐cost, high‐efficiency solid‐state refrigeration
technology, the electrocaloric effects of ferroelectric materials have attracted much attention …

Antiferroelectrics: History, fundamentals, crystal chemistry, crystal structures, size effects, and applications

CA Randall, Z Fan, I Reaney, LQ Chen… - Journal of the …, 2021 - Wiley Online Library
Antiferroelectric (AFE) materials are of great interest owing to their scientific richness and
their utility in high‐energy density capacitors. Here, the history of AFEs is reviewed, and the …

Interplay of domain structure and phase transitions: theory, experiment and functionality

A Grünebohm, M Marathe… - Journal of Physics …, 2021 - iopscience.iop.org
Abstract Domain walls and phase boundaries are fundamental ingredients of ferroelectrics
and strongly influence their functional properties. Although both interfaces have been …

Room‐Temperature Symmetric Giant Positive and Negative Electrocaloric Effect in PbMg0.5W0.5O3 Antiferroelectric Ceramic

J Li, HH Wu, J Li, X Su, R Yin, S Qin… - Advanced Functional …, 2021 - Wiley Online Library
As an emerging solid‐state refrigeration technology with zero‐emission and high energy
conversion efficiency, there is a compelling need for ferroelectric materials with giant …

Origin of large negative electrocaloric effect in antiferroelectric

P Vales-Castro, R Faye, M Vellvehi, Y Nouchokgwe… - Physical Review B, 2021 - APS
We have studied the electrocaloric response of the archetypal antiferroelectric PbZr O 3 as a
function of voltage and temperature in the vicinity of its antiferroelectric-paraelectric phase …

Electrocaloric effect in relaxor ferroelectric polymer nanocomposites for solid-state cooling

H Hu, F Zhang, S Luo, J Yue, CH Wang - Journal of materials …, 2020 - pubs.rsc.org
The electrocaloric phenomenon in polymers and metals has gained significant interest as an
alternative mechanism for conventional compressor-based refrigerators and air …

Prediction of a Giant Magnetoelectric Cross-Caloric Effect around a Tetracritical Point in Multiferroic

A Edström, C Ederer - Physical review letters, 2020 - APS
We study the magnetoelectric and electrocaloric response of strain-engineered, multiferroic
SrMnO 3, using a phenomenological Landau theory with all parameters obtained from first …

Electric hysteresis and validity of indirect electrocaloric characterization in antiferroelectric ceramics

J Li, X Su, HH Wu, J Li, S Qin, R Yin, C Liu, D Guo… - Scripta Materialia, 2022 - Elsevier
Antiferroelectric (AFE) materials have garnered considerable attention in electrocaloric (EC)
refrigeration owing to the large entropy change accompanying their transitions and the …

Observation of a negative thermal hysteresis in relaxor ferroelectric polymers

Y Liu, A Haibibu, W Xu, Z Han… - Advanced Functional …, 2020 - Wiley Online Library
Hysteresis phenomena, including both electrical and thermal types, are essential to
ferroelectric materials. The former, known as polarization‐electric field hysteresis, has been …

Doping-induced Polar Defects Improve the Electrocaloric Performance of

J Li, J Lv, D Zhang, L Zhang, X Hao, M Wu, BX Xu… - Physical Review …, 2021 - APS
In materials science, intentional doping has been widely used to improve the properties of a
variety of materials. However, such an approach is not yet exploited in the fast-growing field …