Converse flexoelectric coefficient f 1212 in bulk Ba 0.67Sr0.33TiO3

Longlong Shu, Wenbin Huang, Seol Ryung Kwon, Zhao Wang, Fei Li, Xiaoyong Wei, Shujun Zhang, Michael Lanagan, Xi Yao, Xiaoning Jiang

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The converse flexoelectric effect, referred as the electric field gradient induced strain, widely exists in dielectric materials, but its experimental studies have been reported by few research groups so far. In this Letter, we report our studies on the converse flexoelectric behavior of (Ba 0.67Sr0.33)TiO3 ceramics and present the measured value of its flexoelectric coefficient f1212. In the experiments, the electric field gradient was generated by applying an electric field across the two lateral sides of trapezoid (Ba0.67Sr 0.33)TiO3 samples. The shear displacement was measured using a laser vibrometer. The converse flexoelectric coefficient f 1212 was found to be 124 ± 14 μ C/m at room temperature. This result was in good agreement with the theoretical prediction of the flexoelectricity of the (Ba, Sr)TiO3 ceramics.

Original languageEnglish (US)
Article number232902
JournalApplied Physics Letters
Issue number23
StatePublished - Jun 9 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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