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 …
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
Electrocaloric effect (ECE) of ferroelectrics has attracted considerable interest due to its
potential application in environmentally friendly solid-state refrigeration. The discovery of …
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 …
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
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 …
phenomenological Landau-Devonshire theory and a soft-zone-center mode of vibration in …
Coexistence of polar and antipolar phases in ferroelectric halide perovskite
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 …
(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
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 …
stress or its strain to an applied field. Using in operando X-ray Bragg coherent diffraction …
Electrocaloric effect in ferroelectric nanowires from atomistic simulations
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 …
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
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 …
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 …
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 …
cubic phase. The calculations are performed within the time-dependent density functional …