Stability of electrodeless ferroelectric domains near a ferroelectric/dielectric interface

Li, X.; Mamchik, A.; Chen, I.-W.
August 2001
Applied Physics Letters;8/6/2001, Vol. 79 Issue 6
Academic Journal
The stability of an electrodeless near-surface ferroelectric domain, such as the one written by the tip of an atomic-force microscope, is considered. The analysis takes into account the domain-wall energy, depolarization energy, and coercive field. The domain is found unstable unless the surface charge is compensated, which was experimentally verified. A high-dielectric substrate is found to stabilize the domain while a low-dielectric substrate has the opposite effect. © 2001 American Institute of Physics.


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