Resonance Raman scattering of relaxors PbSc0.5Ta0.5O3 and PbSc0.5Nb0.5O3

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2007
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  • Relaxor Pb Sc0.5 Ta0.5 O3 and Pb Sc0.5 Nb0.5 O3 single crystals are studied at room temperature using resonance Raman scattering. It is shown that the phonon modes associated with O localized B O6 vibrations in ferroic clusters strongly resonate in the vicinity of the maximum of the optical dielectric response function at 3.71 eV. Resonance Raman spectroscopy can be used to estimate the fraction and the average size of polar nanoclusters in the relaxor state. © 2007 American Institute of Physics.
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  • info:eu-repo/semantics/closedAccess
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Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/2e77815b-3dc2-4697-a6a8-9e987f69be85