Broadband inelastic light scattering study on relaxor ferroelectrics

Shinya Tsukada; Yuji Ike; Jun Kano; Tadashi Sekiya; Yoshiro Shimojo; Ruiping Wang; Seiji Kojima

doi:10.1143/JJAP.46.7151

Broadband inelastic light scattering study on relaxor ferroelectrics

Shinya Tsukada, Yuji Ike, Jun Kano, Tadashi Sekiya, Yoshiro Shimojo, Ruiping Wang, Seiji Kojima

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Dielectric and light scattering studies on a Pb(Ni_1/3Nb _2/3)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 _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 diple moments in the PNRs. In addition, the activation energy at 0K has been evaluated as H_0B = 2.11 × 10³ K.

Original language	English
Pages (from-to)	7151-7154
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	46
Issue number	10 B
DOIs	https://doi.org/10.1143/JJAP.46.7151
Publication status	Published - Oct 22 2007
Externally published	Yes

Keywords

Brillouin scattering
Central peak
Diffuse phase transition
Polar nanoregion
Raman scattering
Relaxor

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Broadband inelastic light scattering study on relaxor ferroelectrics",

abstract = "Dielectric and light scattering studies on a Pb(Ni1/3Nb 2/3)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 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 diple moments in the PNRs. In addition, the activation energy at 0K has been evaluated as H0B = 2.11 × 103 K.",

keywords = "Brillouin scattering, Central peak, Diffuse phase transition, Polar nanoregion, Raman scattering, Relaxor",

author = "Shinya Tsukada and Yuji Ike and Jun Kano and Tadashi Sekiya and Yoshiro Shimojo and Ruiping Wang and Seiji Kojima",

year = "2007",

month = oct,

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doi = "10.1143/JJAP.46.7151",

language = "English",

volume = "46",

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journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

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TY - JOUR

T1 - Broadband inelastic light scattering study on relaxor ferroelectrics

AU - Tsukada, Shinya

AU - Ike, Yuji

AU - Kano, Jun

AU - Sekiya, Tadashi

AU - Shimojo, Yoshiro

AU - Wang, Ruiping

AU - Kojima, Seiji

PY - 2007/10/22

Y1 - 2007/10/22

N2 - Dielectric and light scattering studies on a Pb(Ni1/3Nb 2/3)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 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 diple moments in the PNRs. In addition, the activation energy at 0K has been evaluated as H0B = 2.11 × 103 K.

AB - Dielectric and light scattering studies on a Pb(Ni1/3Nb 2/3)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 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 diple moments in the PNRs. In addition, the activation energy at 0K has been evaluated as H0B = 2.11 × 103 K.

KW - Brillouin scattering

KW - Central peak

KW - Diffuse phase transition

KW - Polar nanoregion

KW - Raman scattering

KW - Relaxor

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U2 - 10.1143/JJAP.46.7151

DO - 10.1143/JJAP.46.7151

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SN - 0021-4922

VL - 46

SP - 7151

EP - 7154

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

IS - 10 B

ER -

Broadband inelastic light scattering study on relaxor ferroelectrics

Abstract

Keywords

ASJC Scopus subject areas

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