Influence of an external electric field on the motion of a ferroelectric domain wall |
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Authors: | J Pouget GA Maugin |
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Institution: | Laboratoire de Mécanique Théorique, Université Pierre et Marie Curie, Tour 66, 4, place Jussieu, 75230 Paris Cedex 05, France |
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Abstract: | The study of the influence of an external electric field on the motion from rest of a domain wall in ferroelectric crystals is presented. The solution of the problem representing the translational and rotational motions of the chain is sought in terms of solitary waves. Both electric and mechanical state of the structure in domains can be determined. The evolution of the velocity of the wall altered by the applied field is determined by means of energy arguments accounting for electromechanical couplings. A numerical simulation is given which illustrates the transient motion from rest of a wall separating two ferroelectric domains. |
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