M. J. Hoffman—contributing editor
Spectroscopic Assessments of Domain Texture in Barium Titanate: I. Confocal Raman Polarization Analysis
Article first published online: 14 OCT 2009
© 2009 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 1, pages 256–264, January 2010
How to Cite
Pezzotti, G., Matsutani, A. and Zhu, W. (2010), Spectroscopic Assessments of Domain Texture in Barium Titanate: I. Confocal Raman Polarization Analysis. Journal of the American Ceramic Society, 93: 256–264. doi: 10.1111/j.1551-2916.2009.03340.x
- Issue published online: 21 DEC 2009
- Article first published online: 14 OCT 2009
- Manuscript No. 26074. Received March 26, 2009; approved July 16, 2009.
A three-dimensional quantitative Raman analysis of ferroelectric domain orientation is presented for single-crystalline barium titanate (BaTiO3; BT). The analysis has been developed according to basic principles of polarized/confocal Raman spectroscopy and is aimed at visualizing in three dimensions the geometrical (local) distribution of domain c-axis in the solid angle. In the first part of the paper, the relative intensity modulation of the BT Raman phonon modes has been theoretically modeled for a BT single crystal as a function of three Euler angles; then, the complete set of Raman tensor elements has been experimentally retrieved for the Ag, the B1, and the Eg vibrational modes of BT. The proposed polarized Raman algorithm is finally applied to the visualization of domain patterns in BT single crystal and the possibility of nondestructively visualizing domain textures in depth is shown; thus, we demonstrate that polarized Raman spectroscopy is a valuable and efficient tool for nondestructive in space assessments of domain orientation in ferroelectric materials.