Abstract
ceramic is shown to exhibit anomalous value of cubic lattice parameter at room temperature. A combination of temperature dependent dielectric and synchrotron x-ray powder-diffraction study has revealed that the anomalous lattice parameter has contribution from spontaneous electrostrictive strain that sets in below 520 K. In analogy with the lead-based classical relaxor ferroelectrics, it is suggested that Pr-doped is a new class of high-temperature lead-free relaxor ferroelectric system.
- Received 25 April 2008
DOI:https://doi.org/10.1103/PhysRevB.78.092102
©2008 American Physical Society