Acoustic anomalies and central peak in SrBi2Ta2O9 single crystals studied by micro-Brillouin scattering

Jae Hyeon Ko; Anwar Hushur; Seiji Kojima; Bryan C. Sih; Zuo Guang Ye

doi:10.1063/1.1524036

Acoustic anomalies and central peak in SrBi₂Ta₂O₉ single crystals studied by micro-Brillouin scattering

Jae Hyeon Ko
, Anwar Hushur
, Seiji Kojima
, Bryan C. Sih
, Zuo Guang Ye

University of Tsukuba
Simon Fraser University

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

19 Scopus citations

Abstract

The acoustic anomalies and central peak in SrBi₂Ta₂O₉ (SBT) single crystal were discussed using micro-Brillouin scattering. It was found that the longitudinal sound velocity propagating along the pseudotetragonal c axis was very small which was related to the weak interlayer bonding of SBT. The analysis suggested that the quasielectric central component observed near T_c was partly responsible for the change of the low-frequency dielectric permittivity at T_c.

Original language	English
Pages (from-to)	4043-4045
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	21
DOIs	https://doi.org/10.1063/1.1524036
State	Published - 18 Nov 2002
Externally published	Yes

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title = "Acoustic anomalies and central peak in SrBi2Ta2O9 single crystals studied by micro-Brillouin scattering",

abstract = "The acoustic anomalies and central peak in SrBi2Ta2O9 (SBT) single crystal were discussed using micro-Brillouin scattering. It was found that the longitudinal sound velocity propagating along the pseudotetragonal c axis was very small which was related to the weak interlayer bonding of SBT. The analysis suggested that the quasielectric central component observed near Tc was partly responsible for the change of the low-frequency dielectric permittivity at Tc.",

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AU - Ko, Jae Hyeon

AU - Hushur, Anwar

AU - Kojima, Seiji

AU - Sih, Bryan C.

AU - Ye, Zuo Guang

PY - 2002/11/18

Y1 - 2002/11/18

N2 - The acoustic anomalies and central peak in SrBi2Ta2O9 (SBT) single crystal were discussed using micro-Brillouin scattering. It was found that the longitudinal sound velocity propagating along the pseudotetragonal c axis was very small which was related to the weak interlayer bonding of SBT. The analysis suggested that the quasielectric central component observed near Tc was partly responsible for the change of the low-frequency dielectric permittivity at Tc.

AB - The acoustic anomalies and central peak in SrBi2Ta2O9 (SBT) single crystal were discussed using micro-Brillouin scattering. It was found that the longitudinal sound velocity propagating along the pseudotetragonal c axis was very small which was related to the weak interlayer bonding of SBT. The analysis suggested that the quasielectric central component observed near Tc was partly responsible for the change of the low-frequency dielectric permittivity at Tc.

UR - https://www.scopus.com/pages/publications/0037132250

U2 - 10.1063/1.1524036

DO - 10.1063/1.1524036

M3 - 文章

AN - SCOPUS:0037132250

SN - 0003-6951

VL - 81

SP - 4043

EP - 4045

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

ER -

Acoustic anomalies and central peak in SrBi₂Ta₂O₉ single crystals studied by micro-Brillouin scattering

Abstract

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