Figure 2From: Origins of domain wall pinning in ferroelectric nanocapacitors Averaged piezoresponse hysteresis loops. (a) Averaged piezoresponse hysteresis loops and (b) histogram of coercive voltage V C in dependence on the pristine domain structure in different PZT nanocapacitors: mono-downward (red), mono-upward (blue), and multi-polarized (green) capacitors. The mono-upward (downward) polarized capacitors have a positive (negative) bias voltage shift.Back to article page