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|Title:||Phase transformations in poled PZN-4.5%PT single crystal revealed by combined property measurements and high-resolution diffraction technique||Authors:||Chang, W.S.
|Issue Date:||2008||Citation:||Chang, W.S., Lim, L.C., Yang, P., Tu, C.-S., Wang, F.-T., Tseng, C.-T. (2008). Phase transformations in poled PZN-4.5%PT single crystal revealed by combined property measurements and high-resolution diffraction technique. Journal of Applied Physics 104 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2969782||Abstract:||The phase transformation of annealed and poled 0.955Pb (Zn 1/3Nb2/3)O3 -0.045 PbTiO3 (PZN-4.5%PT) single crystals has been studied by means of combined bulk property measurements (dielectric permittivity and thermal current density measurements) and microstructural characterization (polarized light microscope and high-resolution x-ray diffraction). Our results showed that upon heating under zero-field condition, poled PZN-4.5%PT undergoes a R-(R+ RNT +T+TNT) - (T+TNT) -C transformation sequence, where (R+RNT) and (T+TNT) denote that the rhombohedral and tetragonal phases present consist of a mixture of microscopic (R,T) and nanotwin (RNT, TNT) domains and C denotes the cubic phase. The RNT and T NT nanotwin domains were detected only in the temperature vicinity of the R-T transformation, possibly as a means to alleviate the transformation stress in the material. These nanotwin diffractions can be easily mistaken as monoclinic diffractions. © 2008 American Institute of Physics.||Source Title:||Journal of Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/85550||ISSN:||00218979||DOI:||10.1063/1.2969782|
|Appears in Collections:||Staff Publications|
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