Skip to content Skip to navigation

Discovery of a Pb-free morphotropic phase boundary (MPB) in a high Tc piezoelectric perovskite


Piezoeletric materials are used for a variety of actuator and sensor applications. Finding a Pb-free replacement for the popular Pb(Zr,Ti)O3 has been a major challenge for the community.


Using the Combinatorial Laser MBE, we have rapidly mapped composition phase diagrams of doped BiFeO3 and identified a novel Pb-free composition at a structural phase boundary. Piezoelectric properties at the boundary are comparable to those of Pb(Zr,Ti)O3

Copyright (2007) University of Maryland, College Park. All rights reserved. Permission to redistribute the contents without alteration is granted to educational institutions for non-profit administrative or educational purposes with proper citation of the literature reference and with credit given to the NSF-MRSEC at the University of Maryland, College Park as the source.