Dynamical slowing down of polar nanoregion in relaxor-based ferroelctric 0.89Pb(Zn2∕3Nb1∕3)O3–0.11PbTiO3

Light scattering experiment has been performed in a single crystal of 0.89Pb(Zn1∕3Nb2∕3)O3–0.11PbTiO3. The central peak (CP) spectra have been well detected with high resolution over the wide frequency region up to 150GHz. The distribution is discovered in the relaxation time associated with the CP....

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Veröffentlicht in:Applied physics letters 2006-07, Vol.89 (2)
Hauptverfasser: Nakata, Yohei, Tsujimi, Yuhji, Katsuraya, Kohei, Iwata, Makoto, Yagi, Toshirou
Format: Artikel
Sprache:eng
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Zusammenfassung:Light scattering experiment has been performed in a single crystal of 0.89Pb(Zn1∕3Nb2∕3)O3–0.11PbTiO3. The central peak (CP) spectra have been well detected with high resolution over the wide frequency region up to 150GHz. 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 Tm 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