Thermal activation of ferroelectric switching

Chong, K. B.; Guiu, F. and Reece, M. J. (2008). Thermal activation of ferroelectric switching. Journal of Applied Physics, 103(1), article no. 014101.

DOI: https://doi.org/10.1063/1.2822179

Abstract

By applying the theory of thermally activated nucleation to the switching of ferroelectric domains, a method is developed to experimentally obtain the value of both the activation enthalpy, ΔH, and activation volume, V*, for the thermally activated process involved in ferroelectric switching. The method was applied to the switching of a soft lead zirconate titanate and values of ΔH = (0.16±0.02) eV and V* = (1.62±0.16)×10−25 m3 were obtained at the coercive field. These values imply that the energy, ΔU, required for the formation of switching nuclei is mainly supplied by the work done by the electric field. A comparison of these values with those obtained from theoretical considerations suggests that the switching is achieved by the sideways expansion of nuclei formed at the domain boundaries in the form of low amplitude and long wavelength fluctuations of the domain walls.

Viewing alternatives

Download history

Metrics

Public Attention

Altmetrics from Altmetric

Number of Citations

Citations from Dimensions

Item Actions

Export

About

  • Item ORO ID
  • 23058
  • Item Type
  • Journal Item
  • ISSN
  • 0021-8979
  • Extra Information
  • This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
  • Academic Unit or School
  • Faculty of Science, Technology, Engineering and Mathematics (STEM)
  • Copyright Holders
  • © 2008 American Institute of Physics
  • Depositing User
  • K B Chong

Recommendations