Domain switching in lead magnesium niobate-lead titanate polycrystalline sheets at single grain level | Zendy

Wei-Sheng Su | Zendy; YangFang Chen | Zendy; Wan Y. Shih | Zendy; Hongyu Luo | Zendy; WeiHeng Shih | Zendy

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Domain switching in lead magnesium niobate-lead titanate polycrystalline sheets at single grain level

Author(s) -

Wei-Sheng Su,

YangFang Chen,

Wan Y. Shih,

Hongyu Luo,

WeiHeng Shih

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2778359

Subject(s) - materials science , piezoelectricity , piezoresponse force microscopy , electric field , crystallite , cantilever , ferroelectricity , polarization (electrochemistry) , planar , lead titanate , grain size , single crystal , optoelectronics , composite material , dielectric , nuclear magnetic resonance , metallurgy , chemistry , physics , computer graphics (images) , quantum mechanics , computer science

The authors provide direct evidence of non-180° domain switching in the piezoelectric response of substrate-free 40μm thick polycrystalline [Pb(Mg1∕3Nb2∕3)O3]0.63(PbTiO3)0.37 (PMN-37PT) sheets under dc electric fields through piezoresponse force microscopy (PFM) at the single grain level. The sheet’s polarization preferred pointing in the planar direction which was switched to the normal direction at electric field ranging between 1.3 and 1.9kV∕cm. An independent d31 measurement of PMN-37PT sheets deduced from the axial tip displacement measurements of a 4mm long PMN-PT/copper cantilever showed enhanced d31 values that peaked at –2700pm∕V in the same range of electric field, consistent with the PFM observation.The authors provide direct evidence of non-180° domain switching in the piezoelectric response of substrate-free 40μm thick polycrystalline [Pb(Mg1∕3Nb2∕3)O3]0.63(PbTiO3)0.37 (PMN-37PT) sheets under dc electric fields through piezoresponse force microscopy (PFM) at the single grain level. The sheet’s polarization preferred pointing in the planar direction which was switched to the normal direction at electric field ranging between 1.3 and 1.9kV∕cm. An independent d31 measurement of PMN-37PT sheets deduced from the axial tip displacement measurements of a 4mm long PMN-PT/copper cantilever showed enhanced d31 values that peaked at –2700pm∕V in the same range of electric field, consistent with the PFM observation.

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