Designing coexisting multi-phases in PZT multilayer thin films: an effective way to induce large electrocaloric effect
Cai Chen, Sichun Wang, Tiandong Zhang, Changhai Zhang, Qingguo Chi, Weili Li
Abstract
values of 28.9 K and 14.8 K have been obtained for the up multilayer and down multilayer thin films. The results indicate that the antiferroelectric/ferroelectric (AFE/FE), ferroelectric/ferroelectric (FE/FE) phase transition and the synergistic effect of the AFE/FE and FE/FE phase transition are as effective as the FE/PE phase transition. In particular, the multilayer thin films are endowed with refrigeration ability at multi-temperature zones due to the coexistence of multi-phases.
Topics & Concepts
Electrocaloric effectMaterials scienceThin filmOptoelectronicsComposite materialFerroelectricityChemical engineeringNanotechnologyDielectricEngineeringFerroelectric and Piezoelectric MaterialsElectronic and Structural Properties of OxidesMagnetic and transport properties of perovskites and related materials