Electrocaloric and barocaloric effects in CsH2PO4 ferroelectric

Inverse barocaloric effects in ferroelectric BaTiO3 ceramics

Electrocaloric Effect (ECE) in Ferroelectric Polymer Films

The electrocaloric effect (ECE) is the change in temperature and/or entropy of a dielectric material due to the electric field induced change of dipolar states. Electrocaloric effect in dielectrics is directly related to the polarization changes under electric field.[1-3,6] Hence a large polarization change is highly desirable in order to achieve a large ECE which renders the ferroelectric mate...

Enhanced electrocaloric and pyroelectric response from ferroelectric multilayers

multilayers M. T. Kesim, J. Zhang, S. P. Alpay, and L. W. Martin Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA Department of Materials Science and Engineering/Materials Research Laboratory, University of Illinois, Urbana Champaign, Urbana, Illinois 61801, USA Department of Physics, University of Conn...

Giant electrocaloric effect in ferroelectric nanotubes near room temperature

Ferroelectric perovskite oxides possess large electrocaloric effect, but only at high temperature, which limits their potential as next generation solid state cooling devices. Here, we demonstrate from phase field simulations that a giant adiabatic temperature change exhibits near room temperature in the strained ferroelectric PbTiO₃ nanotubes, which is several times in magnitude larger than th...

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. We use first-principles-based direct simulations to predict the electrocaloric temperature change in ferroelectric ultrathin nanowires. Our findings suggest that in nanowires with axial polarization direction t...