Domain Structures of Epitaxial Perovskite Ferroelectric Films: Part I. Theory

Authors: S. Pamir ALPAY, Alexander L. ROYTBURD

Abstract: Possible equilibrium domain structures due to elastic interactions between the film and the substrate as a result of a cubic-tetragonal transformation observed in epitaxial perovskite ferroelectric films are analyzed. Domain structures are compared in terms of their elastic energies. The formation of both two- and three-domain states is taken into account. Maps which shows domain stability regions are developed in coordinates of misfit strain and tetragonality of the lattice of the ferroelectric phase.


Full Text: PDF