Polarized Raman scattering of domain structures in polycrystalline lead zirconate titanate

Abstract

The intensity change upon crystal rotation of selected Raman modes of a lead-zirconate-titanate-based relaxor has been examined from both theoretical and experimental viewpoints. Periodic functions, representing intensity ratios between Raman bands as a function of crystal orientation, have been theoretically derived from the Raman tensor of both Ag and E phonon modes. Theoretical computations were compared with experimental data on a poled polycrystal and a discussion provided on reliability of different spectroscopic approaches for quantitative assessment of domain orientation.

Metamictization in zircon: Raman investigation following a Rietveld approach. Part II: Sampling depth implication and experimental data

“…by Deluca et al (≈30 µm for ferroelectric PbZr 1 -x Ti x O 3 ). [19] Our findings are contrasted by values of approx. 2 µm for the axial resolution using an objective lens with NA = 0.95 as given by Nasdala et al [20] and Markwort et al [21] However, these studies did not further investigate the actual sampling depth but the 'axial resolution' which is (at least) one order of magnitude smaller than the axial detection limit for optically transparent material.…”

Quantitative evaluation of local domain patterns in [110] poled Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 single crystal using a polarized Raman microprobe

“…Several attempts have been conducted and various techniques proposed for such a purpose. [2][3][4] Among them, polarized Raman spectroscopy ͑PRS͒ is an attractive technique for its contactless and nondestructive features, coupled with a user friendly operation process as well as with a high spatial resolution ͑typically in the scale of the micrometer͒. [5][6][7][8] For perovskite-type materials, especially such as barium titanate and lead zirconate titanate based materials, domain structures have been studied by the PRS technique.…”

Polarized micro‐Raman study of Al2O3‐based directionally solidified oxide eutectics containing GdAlO3 perovskite, Er3Al5O12 garnet and cubic ZrO2

“…7 for G 1 and G 2 modes look very similar to the sample rotation-dependant periodic variations previously observed in CdS nanowires, [26] silicon-on-insulator layers, [25] iodine single crystals, [27] and several polycrystalline materials. [22,28,29] This notwithstanding the polarization scrambling through Raman microscope and the limited reliability of the fitting procedure for weak and/or overlapping GAP Raman modes.…”