Polarization rotation via a monoclinic phase in the piezoelectric 92% PbZn1/3Nb2/3O3-8% PbTiO3

Authors
Noheda, B Cox, DE Shirane, G Park, SE Cross, LE Zhong, Z
Citation
B. Noheda et al., Polarization rotation via a monoclinic phase in the piezoelectric 92% PbZn1/3Nb2/3O3-8% PbTiO3, PHYS REV L, 86(17), 2001, pp. 3891-3894
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
17
Year of publication
2001
Pages
3891 - 3894
Database
ISI
SICI code
0031-9007(20010423)86:17<3891:PRVAMP>2.0.ZU;2-4
Abstract
The origin of ultrahigh piezoelectricity in the relaxer ferroelectric PhZn1 /3Nb2/3O3-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 differe nt type of monoclinic distortion. Details of the structure and domain confi guration 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)O-3 system.