TITLE

Phase transitional behavior and piezoelectric properties of the orthorhombic phase of Pb(Mg[sub 1/3]Nb[sub 2/3])O[sub 3]-PbTiO[sub 3] single crystals

AUTHOR(S)
Lu, Yu; Jeong, D.-Y.; Cheng, Z.-Y.; Zhang, Q. M.; Luo, Hao-Su; Yin, Zhi-Wen; Viehland, D.
PUB. DATE
May 2001
SOURCE
Applied Physics Letters;5/14/2001, Vol. 78 Issue 20, p3109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the observation of an orthorhombic ferroelectric phase in 0.67Pb(Mg[sub 1/3]Nb[sub 2/3])O[sub 3]-0.33PbTiO[sub 3] single crystals, whose polarization is along <011> direction and stability can be altered by poling conditions. We studied the piezoelectric properties on poled <011> crystals, in both monodomain and polydomain states, and found that the piezoelectric d[sub 32] coefficient, which is the piezoelectric response in perpendicular to the poling direction, is positive in both cases. Based on the phenomenological theory, we show that this is possible in a crystal with the electrostrictive coefficients Q[sub 11]>Q[sub 44]-Q[sub 12]. © 2001 American Institute of Physics.
ACCESSION #
4710681

 

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