Fig. 5: Arbitrary flexoelectric domain engineering.
From: Reversible flexoelectric domain engineering at the nanoscale in van der Waals ferroelectrics
a Flow diagram of arbitrary flexoelectric domain engineering with nano-tip imprinting technique. b, c Demonstration of upward stripe domain writing. In a spontaneous domain, by imprinting points with a step size of 20 nm along the x-axis and a step size of 200 nm along the y-axis, upward stripe ferroelectric domains are obtained. d, e Demonstration of upward square domain writing. In a spontaneous domain, by imprinting points with a step size of 20 nm along the x-axis and a step size of 20 nm along the y-axis, an upward square ferroelectric domain is mechanically written.
