Piezoelectric response of nanoscale PbTiO3 in composite PbTiO3 - CoFe2O4 epitaxial films

Zhuopeng Tan; Alexander L. Roytburd; Igor Levin; Katyayani Seal; Brian J. Rodriguez; Stephen Jesse; Sergei Kalinin; Art Baddorf

doi:10.1063/1.2969038

Piezoelectric response of nanoscale PbTiO₃ in composite PbTiO₃ - CoFe₂O₄ epitaxial films

Zhuopeng Tan, Alexander L. Roytburd, Igor Levin, Katyayani Seal, Brian J. Rodriguez, Stephen Jesse, Sergei Kalinin, Art Baddorf

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Abstract

Piezoelectric properties of PbTiO₃ in 1/3PbTiO ₃-2/3CoFe₂O₄ transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the individual PbTiO₃ nanocolumns in the CoFe₂O ₄ matrix exhibit a detectable piezoelectric response regardless of substrate orientation. For the {100} and {110} orientations, a bias of ±10 V produced ferroelectric domain switching; however, no switching was observed for the {111} films. Small values of piezoelectric constants d _zz⁽¹⁰⁰⁾ ≈11 pm/V, d_zz⁽¹¹⁰⁾ ≈5 pm/V, and d_zz⁽¹¹¹⁾ ≈3 pm/V are attributed to the weak intrinsic response of the nano- PbTiO₃ under strong mechanical and depolarizing-field constraints in the composite films.

Original language	English
Article number	074101
Journal	Applied Physics Letters
Volume	93
Issue number	7
DOIs	https://doi.org/10.1063/1.2969038
State	Published - 2008

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title = "Piezoelectric response of nanoscale PbTiO3 in composite PbTiO3 - CoFe2O4 epitaxial films",

abstract = "Piezoelectric properties of PbTiO3 in 1/3PbTiO 3-2/3CoFe2O4 transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the individual PbTiO3 nanocolumns in the CoFe2O 4 matrix exhibit a detectable piezoelectric response regardless of substrate orientation. For the {100} and {110} orientations, a bias of ±10 V produced ferroelectric domain switching; however, no switching was observed for the {111} films. Small values of piezoelectric constants d zz(100) ≈11 pm/V, dzz(110) ≈5 pm/V, and dzz(111) ≈3 pm/V are attributed to the weak intrinsic response of the nano- PbTiO3 under strong mechanical and depolarizing-field constraints in the composite films.",

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doi = "10.1063/1.2969038",

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T1 - Piezoelectric response of nanoscale PbTiO3 in composite PbTiO3 - CoFe2O4 epitaxial films

AU - Tan, Zhuopeng

AU - Roytburd, Alexander L.

AU - Levin, Igor

AU - Seal, Katyayani

AU - Rodriguez, Brian J.

AU - Jesse, Stephen

AU - Kalinin, Sergei

AU - Baddorf, Art

PY - 2008

Y1 - 2008

N2 - Piezoelectric properties of PbTiO3 in 1/3PbTiO 3-2/3CoFe2O4 transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the individual PbTiO3 nanocolumns in the CoFe2O 4 matrix exhibit a detectable piezoelectric response regardless of substrate orientation. For the {100} and {110} orientations, a bias of ±10 V produced ferroelectric domain switching; however, no switching was observed for the {111} films. Small values of piezoelectric constants d zz(100) ≈11 pm/V, dzz(110) ≈5 pm/V, and dzz(111) ≈3 pm/V are attributed to the weak intrinsic response of the nano- PbTiO3 under strong mechanical and depolarizing-field constraints in the composite films.

AB - Piezoelectric properties of PbTiO3 in 1/3PbTiO 3-2/3CoFe2O4 transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the individual PbTiO3 nanocolumns in the CoFe2O 4 matrix exhibit a detectable piezoelectric response regardless of substrate orientation. For the {100} and {110} orientations, a bias of ±10 V produced ferroelectric domain switching; however, no switching was observed for the {111} films. Small values of piezoelectric constants d zz(100) ≈11 pm/V, dzz(110) ≈5 pm/V, and dzz(111) ≈3 pm/V are attributed to the weak intrinsic response of the nano- PbTiO3 under strong mechanical and depolarizing-field constraints in the composite films.

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Piezoelectric response of nanoscale PbTiO₃ in composite PbTiO₃ - CoFe₂O₄ epitaxial films

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