Raman Spectroscopy of Polar Nano-regions in [Pb(Sc1/2Nb1/2)O3]0.58–[PbTiO3]0.42 Single Crystal

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概要

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• The Raman spectra of (001) [Pb(Sc1/2Nb1/2)O3]0.58–[PbTiO3]0.42 (0.58PSN–0.42PT) single crystal indicates the existence of local structural distortion different from that of the cubic structure. Comparison of Raman spectra with Pb(Sc1/2Nb1/2)O3 (PSN) and other relaxor compounds shows a two-mode behavior for 0.58PSN–0.42PT. The two-mode behavior has been clearly identified not only from the high frequency range but also on the basis of the low frequency range of the Raman spectra. This suggests a phase separation of Ti- and Nb-rich regions at the nanometer scale.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-08-25

著者

• Jayavel R.

  Crystal Growth Centre Anna University

• Rajasekaran S.

  Crystal Growth Centre, Anna University, Chennai-600 025, India

• Jayavel R.

  Crystal Growth Centre, Anna University, Chennai-600 025, India

• Sivasubramanian V.

  Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan

関連論文

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• Raman Spectroscopy of Polar Nano-regions in [Pb(Sc1/2Nb1/2)O3]0.58–[PbTiO3]0.42 Single Crystal

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