Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3460804
Title: Transformation stress induced metastable tetragonal phase in (93-92) %Pb (Zn1/3/ Nb2/3) O3 - (7-8) % PbTiO3 single crystals
Authors: Chang, W.S. 
Lim, L.C. 
Yang, P. 
Ku, C.-S.
Lee, H.-Y.
Tu, C.-S.
Issue Date: 15-Aug-2010
Citation: Chang, W.S., Lim, L.C., Yang, P., Ku, C.-S., Lee, H.-Y., Tu, C.-S. (2010-08-15). Transformation stress induced metastable tetragonal phase in (93-92) %Pb (Zn1/3/ Nb2/3) O3 - (7-8) % PbTiO3 single crystals. Journal of Applied Physics 108 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3460804
Abstract: High-resolution synchrotron radiation diffraction results indicate that the room temperature tetragonal (T) phase in (93-92) %Pb (Zn1/3/ Nb 2/3) O3 - (7-8) % PbTiO3 [PZN-(7-8)%PT] single crystals is a metastable phase stabilized by the transformation-cum-cooling stress in the crystal. This is manifested by the "missing" (001) T diffractions when the diffractions were taken from (001) fractured surfaces. The stress relaxation in this case has caused the metastable (001) T domains in the surface layer to transform to the equilibrium rhombohedral phase. Temperature and particle size effects on the metastable domains have been examined and discussed. Based on the present finding, a new PZN-PT phase diagram showing extended rhombohedral+tetragonal region is proposed. © 2010 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/86100
ISSN: 00218979
DOI: 10.1063/1.3460804
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