A review on different theoretical models of electrocaloric effect for refrigeration

C Shao, AA Amirov, H Huang - Frontiers in Energy, 2023 - Springer
The performance parameters for characterizing the electrocaloric effect are isothermal
entropy change and the adiabatic temperature change, respectively. This paper reviews the …

[HTML][HTML] Electrocaloric effect in ferroelectric materials: From phase field to first-principles based effective Hamiltonian modeling

J Zhang, X Hou, Y Zhang, G Tang, J Wang - Materials Reports: Energy, 2021 - Elsevier
Electrocaloric effect (ECE) of ferroelectrics has attracted considerable interest due to its
potential application in environmentally friendly solid-state refrigeration. The discovery of …

Quantum-Accurate Modeling of Ferroelectric Phase Transition in Perovskites from Message-Passing Neural Networks

X Ouyang, Y Zhuang, J Zhang, F Zhang… - The Journal of …, 2023 - ACS Publications
Graph-based message-passing neural networks (MPNNs) have been proposed to facilitate
computational research on materials at the atomic scale, which represent the chemical …

Nature of ferroelectric-paraelectric phase transition and origin of negative thermal expansion in

H Fang, Y Wang, S Shang, ZK Liu - Physical Review B, 2015 - APS
Ferroelectric-paraelectric (FE-PE) phase transitions have been primarily explained by the
phenomenological Landau-Devonshire theory and a soft-zone-center mode of vibration in …

Coexistence of polar and antipolar phases in ferroelectric halide perovskite

R Kashikar, S Lisenkov, I Ponomareva - Physical Review B, 2024 - APS
Recently, ferroelectricity has been demonstrated in the family of halide perovskites CsGe X 3
(X= Cl, Br, I). We develop a first-principles-based computational approach to probe the finite …

Enhanced piezoelectric response at nanoscale vortex structures in ferroelectrics

X Shi, NP Nazirkar, R Kashikar, D Karpov… - … Applied Materials & …, 2024 - ACS Publications
The piezoelectric response is a measure of the sensitivity of a material's polarization to
stress or its strain to an applied field. Using in operando X-ray Bragg coherent diffraction …

Electrocaloric effect in ferroelectric nanowires from atomistic simulations

R Herchig, CM Chang, BK Mani, I Ponomareva - Scientific Reports, 2015 - nature.com
Electrocaloric effect is presently under active investigation owing to both the recent
discoveries of giant electrocaloric effects and its potential for solid state cooling applications …

Investigation of La and Al substitution on the spontaneous polarization and lattice dynamics of the Pb (1-x) LaxTi (1-x) AlxO3 ceramics

AK Yadav, A Verma, S Kumar, V Srihari… - Journal of Applied …, 2018 - pubs.aip.org
The phase purity and crystal structure of Pb (1-x) La x Ti (1-x) Al x O 3 (0≤ x≤ 0.25)
samples (synthesized via the sol-gel process) were confirmed using synchrotron x-ray …

Microscopic structure and migration of 90° ferroelectric domain wall in BaTiO3 determined via molecular dynamics simulations

H Azuma, S Ogata, R Kobayashi… - Journal of Applied …, 2023 - pubs.aip.org
BaTiO3 is a well-known piezoelectric material with commercial uses. The ferroelectric state
of BaTiO3 generally comprises electrically polarized domains separated by domain walls …

Dielectric and optical properties of cubic perovskites ATiO3 (A= Ca, Sr, Ba, Pb)

NQ Hien, HT Nguyen-Truong - Solid State Communications, 2022 - Elsevier
We study dielectric and optical properties of perovskites ATiO 3 (A= Ca, Sr, Ba, Pb) in the
cubic phase. The calculations are performed within the time-dependent density functional …