Dynamical slowing down of polar nanoregion in relaxor-based ferroelctric 0.89 Pb ( Zn 2 ∕ 3 Nb 1 ∕ 3 ) O 3 - 0.11 Pb Ti O 3

Light scattering experiment has been performed in a single crystal of 0.89 Pb ( Zn 1 ∕ 3 Nb 2 ∕ 3 ) O 3 - 0.11 Pb Ti O 3 . The central peak (CP) spectra have been well detected with high resolution over the wide frequency region up to 150 GHz . The distribution is discovered in the relaxation time a...

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Bibliographic Details
Published in:Applied physics letters 2006-07, Vol.89 (2), p.022903-022903-3
Main Authors: Nakata, Yohei, Tsujimi, Yuhji, Katsuraya, Kohei, Iwata, Makoto, Yagi, Toshirou
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Summary:Light scattering experiment has been performed in a single crystal of 0.89 Pb ( Zn 1 ∕ 3 Nb 2 ∕ 3 ) O 3 - 0.11 Pb Ti O 3 . The central peak (CP) spectra have been well detected with high resolution over the wide frequency region up to 150 GHz . The distribution is discovered in the relaxation time associated with the CP. Moreover, it is found that the maximum relaxation time indicates the dynamical slowing down near the temperature T m at which the low-frequency dielectric constant has a maximum. This finding strongly suggests that the physical origin of the CP is "polar nanoregions."
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2221387