Electron backscatter diffraction as a domain analysis technique in BiFeO(3)-PbTiO(3) single crystals

IEEE Trans Ultrason Ferroelectr Freq Control. 2008 May;55(5):957-62. doi: 10.1109/TUFFC.2008.739.

Abstract

xBiFeO(3)-(1-x)PbTiO(3) single crystals were grown via a flux method for a range of compositions. Presented here is a study of the domain configuration in the 0.5BiFeO(3)-0.5PbTiO(3) composition using electron backscatter diffraction to demonstrate the ability of the technique to map ferroelastic domain structures at the micron and submicron scale. The micron-scale domains exhibit an angle of approximately 85 degrees between each variant, indicative of a ferroelastic domain wall in a tetragonal system with a spontaneous strain, c/a - 1 of 0.10, in excellent agreement with the lattice parameters derived from x-ray diffraction. Contrast seen in forescatter images is attributed to variations in the direction of the electrical polarization vector, providing images of ferroelectric domain patterns.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcium Compounds / chemistry*
  • Electrons
  • Oxides / chemistry*
  • Radiation Dosage
  • Refractometry / methods*
  • Scattering, Radiation
  • Surface Properties
  • Titanium / chemistry*

Substances

  • Calcium Compounds
  • Oxides
  • perovskite
  • Titanium