Dynamical properties of polar nanoregions of relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO3

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

doi:10.1143/JPSJ.77.033707

Dynamical properties of polar nanoregions of relaxor ferroelectric Pb(Ni_1/3Nb_2/3)O₃-0.29PbTiO₃

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

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

38 Citations (Scopus)

Abstract

Dynamical properties of the polar nanoregions (PNRs) of a relaxor ferroelectric Pb(Ni_1/3Nb_2/3)O₃-0.29PbTiO ₃ single crystal are studied by using Brillouin scattering to elucidate the mechanism of the diffuse phase transition. The temperature dependence of Brillouin scattering shows anomalies at three temperatures: at T_d related to the appearance of the PNRs, at T* associated with the growth of the PNRs, and at T_f related to the macroscopic structural phase transition; all these temperatures are closely related to the dynamical behavior of the PNRs. The thermal hysteresis around T_f in the longitudinal acoustic properties can be interpreted by considering the growth process of the PNRs. From the anomalous acoustic properties, the relaxation time of the polarization fluctuation is evaluated. It is found that the relaxational process responsible for the central peak originates from the polarization fluctuation that is coupled with the longitudinal acoustic mode.

Original language	English
Article number	033707
Journal	journal of the physical society of japan
Volume	77
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.77.033707
Publication status	Published - Mar 2008
Externally published	Yes

Keywords

Brillouin scattering
Central peak
Ferroelectrics
Relaxor
Structural phase transition

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.77.033707

Cite this

@article{f244d623270648afb0e6ba05fc20b911,

title = "Dynamical properties of polar nanoregions of relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO3",

abstract = "Dynamical properties of the polar nanoregions (PNRs) of a relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO 3 single crystal are studied by using Brillouin scattering to elucidate the mechanism of the diffuse phase transition. The temperature dependence of Brillouin scattering shows anomalies at three temperatures: at Td related to the appearance of the PNRs, at T* associated with the growth of the PNRs, and at Tf related to the macroscopic structural phase transition; all these temperatures are closely related to the dynamical behavior of the PNRs. The thermal hysteresis around Tf in the longitudinal acoustic properties can be interpreted by considering the growth process of the PNRs. From the anomalous acoustic properties, the relaxation time of the polarization fluctuation is evaluated. It is found that the relaxational process responsible for the central peak originates from the polarization fluctuation that is coupled with the longitudinal acoustic mode.",

keywords = "Brillouin scattering, Central peak, Ferroelectrics, Relaxor, Structural phase transition",

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

year = "2008",

month = mar,

doi = "10.1143/JPSJ.77.033707",

language = "English",

volume = "77",

journal = "journal of the physical society of japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "3",

}

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T1 - Dynamical properties of polar nanoregions of relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO3

AU - Tsukada, Shinya

AU - Ike, Yuji

AU - Kano, Jun

AU - Sekiya, Tadashi

AU - Shimojo, Yoshiro

AU - Wang, Ruiping

AU - Kojima, Seiji

PY - 2008/3

Y1 - 2008/3

N2 - Dynamical properties of the polar nanoregions (PNRs) of a relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO 3 single crystal are studied by using Brillouin scattering to elucidate the mechanism of the diffuse phase transition. The temperature dependence of Brillouin scattering shows anomalies at three temperatures: at Td related to the appearance of the PNRs, at T* associated with the growth of the PNRs, and at Tf related to the macroscopic structural phase transition; all these temperatures are closely related to the dynamical behavior of the PNRs. The thermal hysteresis around Tf in the longitudinal acoustic properties can be interpreted by considering the growth process of the PNRs. From the anomalous acoustic properties, the relaxation time of the polarization fluctuation is evaluated. It is found that the relaxational process responsible for the central peak originates from the polarization fluctuation that is coupled with the longitudinal acoustic mode.

AB - Dynamical properties of the polar nanoregions (PNRs) of a relaxor ferroelectric Pb(Ni1/3Nb2/3)O3-0.29PbTiO 3 single crystal are studied by using Brillouin scattering to elucidate the mechanism of the diffuse phase transition. The temperature dependence of Brillouin scattering shows anomalies at three temperatures: at Td related to the appearance of the PNRs, at T* associated with the growth of the PNRs, and at Tf related to the macroscopic structural phase transition; all these temperatures are closely related to the dynamical behavior of the PNRs. The thermal hysteresis around Tf in the longitudinal acoustic properties can be interpreted by considering the growth process of the PNRs. From the anomalous acoustic properties, the relaxation time of the polarization fluctuation is evaluated. It is found that the relaxational process responsible for the central peak originates from the polarization fluctuation that is coupled with the longitudinal acoustic mode.

KW - Brillouin scattering

KW - Central peak

KW - Ferroelectrics

KW - Relaxor

KW - Structural phase transition

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