Ferroelectric Properties of Tungsten Bronze Morphotropic Phase Bounary Systems |
| |
Authors: | John R. Oliver Ratnakar R. Neurgaonkar L. Eric Cross |
| |
Affiliation: | Rockwell International Science Center, Thousand Oaks, California 91360;Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802 |
| |
Abstract: | Tungsten bronze ferroelectrics which have a morphotropic phase boundary (MPB) can have a number of enhanced dielectric, piezoelectric, and electrooptic properties compared to more conventional ferroelectric materials. The structural and ferroelectric properties of several MPB bronze systems are presented, including data from sintered and hot-pressed ceramics, epitaxial thin films, and bulk single crystals. Included among these are three systems which had not been previously identified as morphotropic. The potential advantages and limitations of these MPB systems are discussed, along with considerations of the appropriate growth methods for their possible utilization in optical, piezoelectric, or pyroelectric device applications. |
| |
Keywords: | ferroelectrics tungsten bronze phases electronic properties phase boundary |
|
|