Abstract
A one-dimensional lattice model with non-ferroelectric boundary sites has been used to study the effect of size on the polarization-reversal process in ferroelectric films. We assume non-ferroelectric imperfections at the boundary sites which act as nuclei for the polarization reversal, and include them explicitly in the free energy. The dependences of the switching time on film thickness and on electric field strength have been obtained, and fitted with empirical formulae. The time evolution of the polarization under a step field has also been simulated, from which we can clearly see domain wall formation and motion. The polarization and current under a bipolar pulse signal are also obtained to demonstrate the different memory state responses, in which a back-switching phenomena can be observed clearly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
