Figure 2
Fast, local piezostrain on the PZT film surface.
The time-dependent evolution of the average piezostrain inside the CoFeB region (<εp>) upon (a) applying a static voltage of 0.43 V and subsequently, (b), the removal of the voltage. We assume a 70-ps rise/fall time for the application/removal of the voltage (as has been experimentally achieved in ref. 37).
