Two Lead Zirconate Titanate (PZT)-based ceramics (PZT-LN doped with Nb, La - and PZTNMML doped with different amounts of Nb, Mn, Mg and Li) were prepared by cold isostatic pressing, densification and subsequently subjected to poling process. Both materials were analyzed with Raman spectroscopic techniques with respect to polarized incident and collected light. The dependence of the relative intensity of selected modes of Raman spectra on the angle between the polarization vector of incident laser light and the local orientation of ferroelectric domains has been unfolded for both materials. Orientation pattern mapping of ferroelectric domains has been directly visualized on PZT-LN and PZT-NMML around indentation prints by polarized Raman spectroscopy.
DOMAIN ORIENTATION MAPPING IN PZT-BASED CERAMICS BY POLARIZED RAMAN SPECTROSCOPY
Carmen Galassi;
2005
Abstract
Two Lead Zirconate Titanate (PZT)-based ceramics (PZT-LN doped with Nb, La - and PZTNMML doped with different amounts of Nb, Mn, Mg and Li) were prepared by cold isostatic pressing, densification and subsequently subjected to poling process. Both materials were analyzed with Raman spectroscopic techniques with respect to polarized incident and collected light. The dependence of the relative intensity of selected modes of Raman spectra on the angle between the polarization vector of incident laser light and the local orientation of ferroelectric domains has been unfolded for both materials. Orientation pattern mapping of ferroelectric domains has been directly visualized on PZT-LN and PZT-NMML around indentation prints by polarized Raman spectroscopy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
