TITLE

Single-domain properties of 0.67Pb(Mg[sub 1/3]Nb[sub 2/3])O[sub 3]–0.33PbTiO[sub 3] single crystals under electric field bias

AUTHOR(S)
Zhang, Rui; Jiang, Bei; Cao, Wenwu
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/3/2003, Vol. 82 Issue 5, p787
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a complete set of material properties of single-domain, relaxor-based 0.67Pb(Mgâ…“Nb[sub 2/3])O[sub 3]-0.33PbTiO[sub 3] [PMN-33%PT] single crystals. Because the single-domain state is unstable in natural conditions, a bias electric field of 0.2 MV/m was applied along the dipole direction of the rhombohedral phase during the measurements. It was found that the electromechanical coupling coefficient k33 and the piezoelectric constant d[sub 33] for single-domain PMN-33%PT are 69% and 190 pC/N, respectively. Both of them are much smaller than those of multidomain PMN-33%PT poled along [001] direction. However, the shear piezoelectric constant d[sub 15] of single-domain PMN-33%PT reaches 4100 pC/N, which is much higher than that of multidomain PMN-33%PT.
ACCESSION #
8989207

 

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