title: Polarization rotation via a monoclinic phase in the piezoelectric 92% PbZn(1/3)Nb(2/3)O3-8% PbTiO3.
abstract: The origin of ultrahigh piezoelectricity in the relaxor ferroelectric PbZn(1/3)Nb(2/3)O3-PbTiO3 was studied with an electric field applied along the [001] direction. The zero-field rhombohedral R phase starts to follow the direct polarization path to tetragonal symmetry via an intermediate monoclinic M phase, but then jumps irreversibly to an alternate path involving a different type of monoclinic distortion. Details of the structure and domain configuration of this novel phase are described. This result suggests that there is a nearby R-M phase boundary as found in the Pb(Ti,Zr)O3 system.
authors.affiliation: Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: B
authors.initials: B
authors.lastname: Noheda
authors.forename: D E
authors.initials: DE
authors.lastname: Cox
authors.forename: G
authors.initials: G
authors.lastname: Shirane
authors.forename: S E
authors.initials: SE
authors.lastname: Park
authors.forename: L E
authors.initials: LE
authors.lastname: Cross
authors.forename: Z
authors.initials: Z
authors.lastname: Zhong