Houbing Huang

Aug 4, 2024 | nature.com | Houbing Huang |Miao Song |He Qi

AbstractThe trade-off between electrostrain and strain hysteresis for piezo/ferroelectric materials largely restrains the development of high precision actuators and remains unresolved over the past few decades. Here, a simple composition of (Bi0.5Na0.5)1-x/100Srx/100TiO3 in the ergodic relaxor state is collaboratively designed through the segregated domain structure with the ferroelectric core, local polarization heterogeneity, and defect engineering.

Jul 10, 2023 | nature.com | Bingbing Yang |Houbing Huang |Hao Pan |Wenxuan Zhu |Bin Wei |Yiqun Liu | +3 more

AbstractRelaxor ferroelectrics are the primary candidates for high-performance energy storage dielectric capacitors. A common approach to tuning the relaxor properties is to regulate the local compositional inhomogeneity, but there is a lack of a quantitative evaluation way for compositional fluctuation in relaxors. Here we propose configurational entropy as an index for the quantitative evaluation of local compositional inhomogeneity.