TITLE

Enhanced piezoelectric and ferroelectric properties in Mn-doped Na0.5Bi0.5TiO3–BaTiO3 single crystals

AUTHOR(S)
Qinhui Zhang; Yaoyao Zhang; Feifei Wang; Yaojin Wang; Di Lin; Xiangyong Zhao; Haosu Luo; Wenwei Ge; Viehland, D.
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/7/2009, Vol. 95 Issue 10, p102904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
High piezoelectric and ferroelectric properties have been found in Mn-doped Na0.5Bi0.5TiO3–BaTiO3 single crystals, which were grown by a top-seeded solution method. The electrical resistivity, dielectric constant, and ferroelectric and piezoelectric properties were all found to be notably enhanced by Mn. The piezoelectric constant d33 and electromechanical coupling coefficients kt and k31 were found to be as high as 483 pC/N, 0.56, and 0.40, respectively. These values are much higher than those previously reported for Pb-free piezoelectric crystals, demonstrating the real potential for alternative lead-free systems for sensor and piezoelectric applications.
ACCESSION #
44150665

 

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