Eugene Furman

TL;DR: It was determined that a large ECE can be realized in the ferroelectric poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer at temperatures above the feroelectric-paraelectric transition (above 70°C), where an isothermal entropy change of more than 55 joules per kilogram per kelvin degree and adiabatic temperature change were observed.

TL;DR: In this paper, a phenomenological thermodynamic theory of PbTiO3 was developed using a modified Devonshire form of the elastic Gibbs free energy, which provided a way of predicting the intrinsic single domain dielectric and piezoelectric properties, which have not been completely determined from experimental measurements.

TL;DR: In this paper, the authors developed a thermodynamic phenomenological theory to model the phase transitions and single-domain properties of the lead zirconate-titanate (PZT) solid solution system.

TL;DR: In this article, the electrocaloric effect (ECE) in inorganic thin film and organic relaxor ferroelectrics is investigated by directly measuring the ECE around room temperature, and the results reveal that giant ECEs can be obtained in the high energy electron irradiated poly(vinylidene fluoride-trifluoroethylene) relaxor copolymer and in the La-doped Pb(ZrTi)O3 relaxor ceramic thin films, which are much larger than that from the normal ferroelectric counterparts.

TL;DR: In this article, the Curie constant was found to form a peak in the middle of the phase diagram at the PZT 50/50 composition, which was then fitted to these data to determine the compositional dependence of coefficients.