Title :
Hierarchial symmetries in PZN-PT crystals due to symmetry reduction by domain averaging
Author :
Viehland, Dwight ; Li, Jie-Fang
Author_Institution :
Naval Sea Command, Newport, RI, USA
Abstract :
An intermediate orthorhombic ferroelectric phase has been found in oriented crystals of (0.92)Pb(Zn1/3Nb2/3)O3 -0.08PbTiO3 (PZN-PT 92/8). The lattice parameters of this intermediate ferroelectric state have been shown to be equal to those predicted by the adaptive martensite theory. A hierarchy of symmetries is believed to exist on the meso-scale which are due to symmetry reductions by domain averaging
Keywords :
crystal symmetry; electric domains; ferroelectric ceramics; ferroelectric transitions; lattice constants; lead compounds; martensitic transformations; PZN-PT crystals; PbZnO3NbO3-PbTiO3; adaptive martensite theory; domain averaging; hierarchial symmetries; intermediate ferroelectric state; intermediate orthorhombic ferroelectric phase; lattice parameters; meso-scale; symmetry reduction; symmetry reductions; Annealing; Bridges; Ceramics; Crystals; Educational institutions; Ferroelectric materials; Goniometers; Lattices; Physics; Polarization;
Conference_Titel :
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-5940-2
DOI :
10.1109/ISAF.2000.941527
