Abstract:
The BiFeO3 films were deposited on the SrTiO3 (001) substrates via tuning the thickness of the
SrRuO3 (SRO) bottom electrode by pulsed laser deposition. The macroscopic ferroelectric and
dielectric properties were dramatically impacted by the various nanoscale domain structures for
both films due to the tunable SRO thickness. The nanoscale domain switching behaviors for both
films were investigated via piezoresponse force microscopy, and results suggest that the domain
structure could be changed by tuning the strain state. The surface potential investigation indicates
that strain helps increase data storage density and stability.
