Abstract
The hydrostatic pressure dependence of the dielectric response of 0.90Pb(Mg1/3Nb2/3) O3-0.10PbTiO3 (abbreviated to PMN-0.10PT hereafter) ceramic was studied. The effect of hydrostatic pressure shows several obvious characteristics: suppression of dielectric permittivity anomaly with −103/kbar, downward shift of Tm with −2.8 K/kbar at 10 kHz frequency and increase of ΔTm (Tm100kHz-Tm0.4kHz). Analysis of the dielectric response of the PMN-0.10PT indicates that hydrostatic pressure results in a decrease of the correlation radius rc of polar nanodomains, strengthening the glasslike character of the response.
Acknowledgments
This work is financially supported by the National Basic Research Progrom of China (973 Program) (Grant No. 2009CB23306) and the National Natural Science Foundation of China (Grant No. 60528008).