Evolution of local structure in Ag2O-TeO2 glasses with addition of Ag2O analyzed by pulsed neutron diffraction and Raman spectroscopy

Yasuhiko Iwadate; Mineta Suzuki; Takeo Hattori; Kazuko Fukushima; Shin Nishiyama; Masakatsu Misawa; Toshiharu Fukunaga; Keiji Itoh

doi:10.1016/j.jallcom.2004.06.093

Evolution of local structure in Ag₂O-TeO₂ glasses with addition of Ag₂O analyzed by pulsed neutron diffraction and Raman spectroscopy

Yasuhiko Iwadate, Mineta Suzuki, Takeo Hattori, Kazuko Fukushima, Shin Nishiyama, Masakatsu Misawa, Toshiharu Fukunaga, Keiji Itoh

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

7 Citations (Scopus)

Abstract

The local structure of Ag₂O-TeO₂ glasses was studied by time-of-flight pulsed neutron diffraction (TOF-PND) and Raman spectroscopy. The results of Raman spectroscopy indicated that TeO₄ trigonal bipyramidal units (tbp) were converted to TeO₃ trigonal pyramidal units (tp) by addition of Ag₂O to TeO₂. Furthermore in PND, the structural parameters for each atomic pair were optimized in the Q-space, and the distances of the near neighbor Te-O correlations forming tbp units and tp units in the network were estimated with some accuracy.

Original language	English
Pages (from-to)	229-233
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	389
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2004.06.093
Publication status	Published - Mar 8 2005
Externally published	Yes

Keywords

Amorphous materials
Inelastic light scattering
Neutron diffraction
Neutron scattering

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2004.06.093

Cite this

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title = "Evolution of local structure in Ag2O-TeO2 glasses with addition of Ag2O analyzed by pulsed neutron diffraction and Raman spectroscopy",

abstract = "The local structure of Ag2O-TeO2 glasses was studied by time-of-flight pulsed neutron diffraction (TOF-PND) and Raman spectroscopy. The results of Raman spectroscopy indicated that TeO4 trigonal bipyramidal units (tbp) were converted to TeO3 trigonal pyramidal units (tp) by addition of Ag2O to TeO2. Furthermore in PND, the structural parameters for each atomic pair were optimized in the Q-space, and the distances of the near neighbor Te-O correlations forming tbp units and tp units in the network were estimated with some accuracy.",

keywords = "Amorphous materials, Inelastic light scattering, Neutron diffraction, Neutron scattering",

author = "Yasuhiko Iwadate and Mineta Suzuki and Takeo Hattori and Kazuko Fukushima and Shin Nishiyama and Masakatsu Misawa and Toshiharu Fukunaga and Keiji Itoh",

year = "2005",

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doi = "10.1016/j.jallcom.2004.06.093",

language = "English",

volume = "389",

pages = "229--233",

journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier BV",

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T1 - Evolution of local structure in Ag2O-TeO2 glasses with addition of Ag2O analyzed by pulsed neutron diffraction and Raman spectroscopy

AU - Iwadate, Yasuhiko

AU - Suzuki, Mineta

AU - Hattori, Takeo

AU - Fukushima, Kazuko

AU - Nishiyama, Shin

AU - Misawa, Masakatsu

AU - Fukunaga, Toshiharu

AU - Itoh, Keiji

PY - 2005/3/8

Y1 - 2005/3/8

N2 - The local structure of Ag2O-TeO2 glasses was studied by time-of-flight pulsed neutron diffraction (TOF-PND) and Raman spectroscopy. The results of Raman spectroscopy indicated that TeO4 trigonal bipyramidal units (tbp) were converted to TeO3 trigonal pyramidal units (tp) by addition of Ag2O to TeO2. Furthermore in PND, the structural parameters for each atomic pair were optimized in the Q-space, and the distances of the near neighbor Te-O correlations forming tbp units and tp units in the network were estimated with some accuracy.

AB - The local structure of Ag2O-TeO2 glasses was studied by time-of-flight pulsed neutron diffraction (TOF-PND) and Raman spectroscopy. The results of Raman spectroscopy indicated that TeO4 trigonal bipyramidal units (tbp) were converted to TeO3 trigonal pyramidal units (tp) by addition of Ag2O to TeO2. Furthermore in PND, the structural parameters for each atomic pair were optimized in the Q-space, and the distances of the near neighbor Te-O correlations forming tbp units and tp units in the network were estimated with some accuracy.

KW - Amorphous materials

KW - Inelastic light scattering

KW - Neutron diffraction

KW - Neutron scattering

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