Surface evolution of a stressed elastic layer in an electric field

Wei Song, Fuqian Yang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The surface evolution of an elastic layer subjected to a far-field uniform tensile stress in an electric field is analysed by using the linear perturbation theory. The driving force controlling the surface growth is the gradient of the chemical potential associated with surface energy, elastic strain energy and electric energy, and surface diffusion is the dominant mechanism of mass transport. An analytical expression of the dispersion relation is obtained, which describes the morphological evolution of the layer in an electric field. It is found that there exists a region, in which any surface perturbation will not lead to the morphological instability of the elastic layer due to the confinement of electromechanical interaction. The electromechanical interaction can either enhance or suppress the growth of the surface perturbation.

Original languageEnglish
Article number020
Pages (from-to)4634-4642
Number of pages9
JournalJournal of Physics D: Applied Physics
Issue number21
StatePublished - Nov 7 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films


Dive into the research topics of 'Surface evolution of a stressed elastic layer in an electric field'. Together they form a unique fingerprint.

Cite this