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Raman selection rules and tensor elements for PMN–0.3PT single crystal
Author(s) -
Ge Wanyin,
Zhu Wenliang,
Pezzotti Giuseppe
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200945015
Subject(s) - raman spectroscopy , microprobe , tensor (intrinsic definition) , rotation (mathematics) , materials science , crystal (programming language) , orientation (vector space) , coherent anti stokes raman spectroscopy , domain (mathematical analysis) , euler angles , molecular physics , raman scattering , analytical chemistry (journal) , optics , chemistry , physics , mineralogy , geometry , mathematics , mathematical analysis , computer science , chromatography , programming language
Abstract Selection rules were put forward theoretically and Raman tensor elements experimentally determined for PMN–0.3PT single‐crystal. Such a body of information was then employed to evaluate local domain orientation in a relaxor‐based PMN–0.3PT material by means of polarized microprobe Raman spectroscopy. The dependence of Raman spectra upon crystal rotation under different polarized probe configurations was experimentally confirmed by collecting the intensity variation of selected Raman modes on Euler's angle rotation in a poled single‐crystal. The periodicity of relative Raman intensity of selected Raman bands revealed symmetry properties. Upon exploiting such properties and with the knowledge of the Raman tensor elements from the A g and E g vibrational modes, a viable path becomes available to determine domain texture in relaxor‐based PMN–PT materials with high spatial resolution. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)