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Title: Electric-field- and stress-induced R-O phase transformation in [011]-poled Pb (Mg1/3Nb2/3)O3- (28-32) % PbTiO3 single crystals of [100]-length cut
Authors: Shanthi, M. 
Lim, L.C. 
Issue Date: 2009
Citation: Shanthi, M., Lim, L.C. (2009). Electric-field- and stress-induced R-O phase transformation in [011]-poled Pb (Mg1/3Nb2/3)O3- (28-32) % PbTiO3 single crystals of [100]-length cut. Journal of Applied Physics 106 (11) : -. ScholarBank@NUS Repository.
Abstract: The respective and combined effects of applied electric field and axial compressive stress on the rhombohedral-to-orthorhombic (R-O) phase transformation in d32 cut [011]-poled PMN-(28-32)%PT single crystals have been investigated. The axial compressive stress in the [100] length direction is found to reduce the R-O transformation field (ERO) of the crystal. On field or stress removal, PMN-(28-30)%PT reverted back to the rhombohedral state and the original good properties were restored. In contrast, field and/or stress-induced R-O transformation in PMN-32%PT single crystal is irreversible such that the initial properties of the crystal could not be recovered even after field and/or stress removal. The results indicate that while the poled single-domain orthorhombic state is the lowest energy state in PMN-32%PT, multidomain rhombohedral state is the lowest energy state in PMN-(28-30)%PT. The maximum electric-field-induced strains for the linear anhysteretic actuation of PMN-30%PT d32 -cut crystals under concurrent field and stress condition are determined. © 2009 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.3264639
Appears in Collections:Staff Publications

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