Properties of ferroelectric nanodots embedded in a polarizable medium: Atomistic simulations

Details Properties of ferroelectric nanodots embedded in a polarizable medium: Atomistic simulations Properties of ferroelectric nanodots embedded in a polarizable medium: Atomistic simulations

2006-09-28

arxiv.org/abs/cond-mat/0609719v1

Physics

Condensed Matter

Materials Science

2 figures

Scientific paper

10.1103/PhysRevLett.97.167601

An atomistic approach is used to investigate finite-temperature properties of ferroelectric nanodots that are embedded in a polarizable medium. Different phases are predicted, depending on the ferroelectric strengths of the material constituting the dot and of the system forming the medium. In particular, novel states, exhibiting a coexistence between two kinds of order parameters or possessing a peculiar order between dipole vortices of adjacent dots, are discovered. We also discuss the origins of these phases, e.g. depolarizing fields and medium-driven interactions between dots.

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