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Proceedings Paper

Electric-field-induced phase transitions of <001>-oriented Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals
Author(s): W. Ren; L. Han; R. Wicks; G. Yang; B. K. Mukherjee
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Paper Abstract

Electric-field-induced phase transitions and piezoelectric properties of <001>-oriented Pb(Mg1/3Nb2/3)O3-32%PbTiO3 (PMN-PT) single crystals have been investigated as a function of temperature. It was found that the phase transitions and piezoelectric properties for PMN-PT crystals are strongly dependent on temperature. The measurements of polarization and longitudinal strain as a function of a unipolar electric field show that the field for the induced monoclinic-tetragonal phase transition decreases linearly with temperature in the range between 23 °C and 75 °C. Raising the temperature can stabilize the tetragonal phase in <001>-oriented PMN-PT crystals. The effective longitudinal piezoelectric constant, d33, in the monoclinic phase increases with temperature. Meanwhile in the field-induced tetragonal phase, d33 is much smaller and has little change with temperature. The electric-field-induced phase transition from a cubic phase to a tetragonal phase was observed at 125 °C.

Paper Details

Date Published: 16 May 2005
PDF: 7 pages
Proc. SPIE 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, (16 May 2005); doi: 10.1117/12.598152
Show Author Affiliations
W. Ren, Royal Military College of Canada (Canada)
L. Han, Royal Military College of Canada (Canada)
R. Wicks, Royal Military College of Canada (Canada)
G. Yang, Royal Military College of Canada (Canada)
B. K. Mukherjee, Royal Military College of Canada (Canada)


Published in SPIE Proceedings Vol. 5761:
Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics
William D. Armstrong, Editor(s)

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