Labile Ferroelastic Nanodomains in Bilayered Ferroelectric Thin Films (pages 3497–3502)
Varatharajan Anbusathaiah, Daisuke Kan, Fransiska C. Kartawidjaja, Reza Mahjoub, Miryam A. Arredondo, Samantha Wicks, Ichiro Takeuchi, John Wang and Valanoor Nagarajan
Article first published online: 20 APR 2009 | DOI: 10.1002/adma.200803701
Bilayered Pb(Zr(1–x),Tix)O3 ferroelectric thin film heterostructures show complex ferroelastic nanodomain patterns. These ferroelastic nanodomains exist only in the upper layer, and hence are able to move under the application of an external electric field. Quantitative analysis reveals an enhanced piezoelectric coefficient of ≈220 pm V−1, rendering them attractive for a variety of electromechanical devices.