Scaling law for electrocaloric temperature change in antiferroelectrics

• DOI: 10.1038/srep19590
• Publication Date: 2016-01-22T10:01:26Z
• Authors: S. Lisenkov; B. K. Mani; E. Glazkova; C. W. Miller; I. Ponomareva
• Keywords: 791; Scaling laws; Physics; 02 engineering and technology; 0210 nano-technology; Article; Ferroelectrics and Multiferroics

AbstractA combination of theoretical and first-principles computational methods, along with experimental evidence from the literature, were used to predict the existence of a scaling law for the electrocaloric temperature change in antiferroelectric materials. We show that the temperature change scales quadratically with electric field, allowing a simple transformation to collapse the set of ΔT(E) onto a single curve. This offers a unique method that can be used to predict electrocaloric behavior beyond the limits of present measurement ranges or in regions where data are not yet available.