Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2973210
Title: Rhombohedral-to-tetragonal phase transformation and thermal depolarization in relaxor-based ferroelectric single crystal
Authors: Chang, W.S. 
Lim, L.C. 
Yang, P. 
Tu, C.-S.
Issue Date: 2008
Source: Chang, W.S., Lim, L.C., Yang, P., Tu, C.-S. (2008). Rhombohedral-to-tetragonal phase transformation and thermal depolarization in relaxor-based ferroelectric single crystal. Applied Physics Letters 93 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2973210
Abstract: The rhombohedral-to-tetragonal (R-T) transformation in relaxor single crystals occurs over a temperature range, manifested by the coexistence of rhombohedral (R) and tetragonal (T) microscopic and nanotwin domains, a string of thermal current signals, and continued degradation of dielectric and electromechanical properties. Thermal current and high-resolution x-ray diffraction results suggest TRT 100-135 °C for [001]-poled PZN-4.5%PT and 90-115 °C for [001]-poled PZN-7%PT. The " TRT " determined from the dielectric permittivity-temperature plot of poled crystals corresponds to the lower bound of TRT, which is also a good indication of the depolarization temperature (TDP) of relaxor ferroelectric single crystals above which perceptible property degradation begins. © 2008 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/61239
ISSN: 00036951
DOI: 10.1063/1.2973210
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