Dielectric response due to stochastic motion of pinned domain walls

Details Dielectric response due to stochastic motion of pinned domain walls Dielectric response due to stochastic motion of pinned domain walls

2004-06-17

arxiv.org/abs/cond-mat/0406401v1

Phys. Rev. B 70, 224104 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 2 figures, revtex4

Scientific paper

10.1103/PhysRevB.70.224104

We study the contribution of stochastic motion of a domain wall (DW) to the dielectric AC susceptibility for low frequencies. Using the concept of waiting time distributions, which is related to the energy landscape of the DW in a disordered medium, we derive the power-law behavior of the complex susceptibility observed recently in some ferroelectrics below Curie temperature.

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