Skip to main content
Article
Nanoindentation of the a and c Domains in a Tetragonal BaTiO3 Single Crystal
Journal of Applied Physics
  • Young-Bae Park
  • Matthew J. Dicken
  • Zhi-Hui Xu, University of South Carolina - Columbia
  • Xiaodong Li, University of South Carolina - Columbia
Publication Date
10-15-2007
Document Type
Article
Abstract

Nanoindentation in conjunction with piezoresponse force microscopy was used to study domain switching and to measure the mechanical properties of individual ferroelectric domains in a tetragonal BaTiO3 single crystal. It was found that nanoindentation has induced local domain switching; the a and c domains of BaTiO3 have different elastic moduli but similar hardness.Nanoindentationmodulus mapping on the a and c domains further confirmed such difference in elasticity. Finite element modeling was used to simulate the von Mises stress and plastic strain profiles of the indentations on both a and c domains, which introduces a much higher stress level than the critical value for domain nucleation.

Citation Information
Young-Bae Park, Matthew J. Dicken, Zhi-Hui Xu and Xiaodong Li. "Nanoindentation of the a and c Domains in a Tetragonal BaTiO3 Single Crystal" Journal of Applied Physics Vol. 102 Iss. 8 (2007) p. #083507
Available at: http://works.bepress.com/xiaodong_li/135/