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XRD pattern of BSPT ceramics with different compositions.
Piezoelectric coefficient and electromechanical coupling factor of BSPT ceramics with different compositions.
Surface micrograph of the surface for BSPT ceramic .
(a) Hysteresis loop of BSPT ceramics , (b) local piezoelectric response vs applied voltage of the grain marked by a cross in Fig. 5(a).
(a) AFM topography of the surface of BSPT ceramic , (b) PFM image corresponding to (a).
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