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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Prog Mater Sci. 2014 Aug 1;65:124–210. doi: 10.1016/j.pmatsci.2014.03.006

Fig. 51.

Fig. 51

Displacement amplitudes across the top surfaces of the: (a) PMN-PT and (b) PZT discs measured by a laser vibrometer (Vertical scale: 50 nm/V) [454].