Broadband Inelastic Light Scattering Study on Relaxor Ferroelectrics
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概要
- 論文の詳細を見る
Dielectric and light scattering studies on a Pb(Ni1/3Nb2/3)O3–0.29PbTiO3 single crystal have been conducted in a wide temperature range to clarify the relaxational properties of polar nanoregions (PNRs). The temperature dependences of the relaxation time observed in light scattering spectra show two characteristic temperatures: associated with enhancement of the correlation length in the PNRs $T^{*}$ and related to a temperature-induced macroscopic structural phase transition $T_{\text{f}}$. These results are closely related to the behavior of the PNRs. We suggest that two relaxation processes are attributed to the central peak and that the origins of the observed relaxation processes are two types of switching processes of dipole moments in the PNRs. In addition, the activation energy at 0 K has been evaluated as $H_{\text{0B}}=2.11\times 10^{3}$ K.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-10-30
著者
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WANG Ruiping
National Institute of Advanced Industrial Science and Technology
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Ike Yuji
Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Sekiya Tadashi
National Industrial Research Institute Of Nagoya
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Shimojo Yoshiro
National Industrial Research Institute Of Nagoya
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Kano Jun
Graduate School Of Pure And Applied Physics Tsukuba Univ.
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Kojima Seiji
Graduate School Of Pas Tsukuba Univ.
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Tsukada Shinya
Graduate School Of Pure And Applied Sciences University Of Tsukuba:japan Society For The Promotion Of Science
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Tsukada Shinya
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Shimojo Yoshiro
National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
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Sekiya Tadashi
National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
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