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J. Korean Ceram. Soc. > Volume 45(3); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(3): 139.
doi: https://doi.org/10.4191/kcers.2008.45.3.139
Phenomenological Analysis of Piezoelectric Properties in 0.88Pb(Zn1/3Nb2/3)O3−0.12PbTiO3 Single Crystals with an Engineering Domain Configuration
Jong-Yoon Ha, Jin-Sang Kim1, Dae-Yong Jeong1, Hyun-Jai Kim1, Seok-Jin Yoon1
Mechanical Engineering, University of California at Berkeley
1Thin Film Materials Research Center, KIST
ABSTRACT
The piezoelectric properties of tetragonal 0.88Pb$(Zn_{1/3}Nb_{2/3)O_3-0.12PbTiO_3$ single crystals are characterized along the <111> direction, which composed the engineering domain configuration in the tetragonal phase. The <111>-oriented crystal possessed smaller $d_{33}$ values compared to the crystal along the <001> spontaneous polarization direction. Based on phenomenological theory, it is shown that the engineering domain configuration does not enhance the piezoelectric constant in tetragonal 0.88Pb$(Zn_{1/3}Nb_{2/3)O_3-0.12PbTiO_3$ single crystals. In addition, the electrostrictive coefficients of $Q_{12}=-0.03706m^4/C^2,;Q_{11}=0.10765m^4/C^2,;and;Q_{44}=0.02020m^4/C^2$ of tetragonal 0.88PZN-0.12PT single crystals were calculated.
Key words: PZN-PT, Electrostrictive coefficients, Single crystal, Engineering domain
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