X-ray thermal-diffuse-scattering study of soft modes in paraelectric BaTiO3

Naohisa Takesue; Mario Maglione; H. D. Chen

doi:10.1103/PhysRevB.51.6696

X-ray thermal-diffuse-scattering study of soft modes in paraelectric BaTiO3

Naohisa Takesue^*, Mario Maglione, H. D. Chen

^*Corresponding author for this work

International College of Semiconductor Technology

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

14 Scopus citations

Abstract

Anomalous x-ray thermal diffuse scattering (TDS) from the paraelectric BaTiO3 has been measured as a function of temperature using synchrotron radiation. Sheets of intensities that were previously reported have been confirmed. The origin of the observed TDS intensities is attributed to the soft on-(100) TA modes and overdamped [010]TO mode for reduced wave vector q>0.25 and <0.25, respectively. In agreement with the previous neutron inelastic scattering experiment, our results support the notion of the one-dimensionally correlated optic motion of atoms.

Original language	English
Pages (from-to)	6696-6699
Number of pages	4
Journal	Physical Review B
Volume	51
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.51.6696
State	Published - 1 Jan 1995

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title = "X-ray thermal-diffuse-scattering study of soft modes in paraelectric BaTiO3",

abstract = "Anomalous x-ray thermal diffuse scattering (TDS) from the paraelectric BaTiO3 has been measured as a function of temperature using synchrotron radiation. Sheets of intensities that were previously reported have been confirmed. The origin of the observed TDS intensities is attributed to the soft on-(100) TA modes and overdamped [010]TO mode for reduced wave vector q>0.25 and <0.25, respectively. In agreement with the previous neutron inelastic scattering experiment, our results support the notion of the one-dimensionally correlated optic motion of atoms.",

author = "Naohisa Takesue and Mario Maglione and Chen, {H. D.}",

year = "1995",

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AU - Takesue, Naohisa

AU - Maglione, Mario

AU - Chen, H. D.

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N2 - Anomalous x-ray thermal diffuse scattering (TDS) from the paraelectric BaTiO3 has been measured as a function of temperature using synchrotron radiation. Sheets of intensities that were previously reported have been confirmed. The origin of the observed TDS intensities is attributed to the soft on-(100) TA modes and overdamped [010]TO mode for reduced wave vector q>0.25 and <0.25, respectively. In agreement with the previous neutron inelastic scattering experiment, our results support the notion of the one-dimensionally correlated optic motion of atoms.

AB - Anomalous x-ray thermal diffuse scattering (TDS) from the paraelectric BaTiO3 has been measured as a function of temperature using synchrotron radiation. Sheets of intensities that were previously reported have been confirmed. The origin of the observed TDS intensities is attributed to the soft on-(100) TA modes and overdamped [010]TO mode for reduced wave vector q>0.25 and <0.25, respectively. In agreement with the previous neutron inelastic scattering experiment, our results support the notion of the one-dimensionally correlated optic motion of atoms.

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