Structural and electronic properties of iron oxides in the celadon glazes (II)

M. Hidaka; K. Takeuchi; R. P. Wijesundera; L. S.R. Kumara; S. Sugihara; N. Momoshima; S. Kubuki; Nark Eon Sung

doi:10.1590/S0366-69132012000400020

Structural and electronic properties of iron oxides in the celadon glazes (II)

M. Hidaka, K. Takeuchi, R. P. Wijesundera, L. S.R. Kumara, S. Sugihara, N. Momoshima, S. Kubuki, Nark Eon Sung

Central Institute of Radioisotope Science and Safety Management

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

4 Citations (Scopus)

Abstract

Celadon glazes have been investigated by means of an X-ray absorption spectrum (XAS) near a Fe-K edge by using synchrotron radiation and a Mössbauer spectrum. High-temperature treatments under CO-deoxidizing and oxidizing till about 1300 °C show the different glaze-color each other. The XAS analyses suggest that the deoxidized celadon glaze (Seiji A) and the oxidized one (Seiji C) have a modified α-Fe₂O₃ structure and an ideal one, respectively, but not FeO structure. The Mössbauer spectra also suggest that the celadon glaze-color depends on the hybridized 3d⁵L and 3d⁶L bands near an electronic Fermi level (E_F), where the hybridization is induced by an electronic exchange interaction between 3d orbitals of Fe ions and 2p orbitals of surrounding O ions in the celadon glaze of glass-state.

Original language	English
Pages (from-to)	534-541
Number of pages	8
Journal	Ceramica
Volume	58
Issue number	348
DOIs	https://doi.org/10.1590/S0366-69132012000400020
Publication status	Published - Oct 2012

All Science Journal Classification (ASJC) codes

Ceramics and Composites

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10.1590/S0366-69132012000400020

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title = "Structural and electronic properties of iron oxides in the celadon glazes (II)",

abstract = "Celadon glazes have been investigated by means of an X-ray absorption spectrum (XAS) near a Fe-K edge by using synchrotron radiation and a M{\"o}ssbauer spectrum. High-temperature treatments under CO-deoxidizing and oxidizing till about 1300 °C show the different glaze-color each other. The XAS analyses suggest that the deoxidized celadon glaze (Seiji A) and the oxidized one (Seiji C) have a modified α-Fe2O3 structure and an ideal one, respectively, but not FeO structure. The M{\"o}ssbauer spectra also suggest that the celadon glaze-color depends on the hybridized 3d5L and 3d6L bands near an electronic Fermi level (EF), where the hybridization is induced by an electronic exchange interaction between 3d orbitals of Fe ions and 2p orbitals of surrounding O ions in the celadon glaze of glass-state.",

author = "M. Hidaka and K. Takeuchi and Wijesundera, {R. P.} and Kumara, {L. S.R.} and S. Sugihara and N. Momoshima and S. Kubuki and Sung, {Nark Eon}",

year = "2012",

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doi = "10.1590/S0366-69132012000400020",

language = "English",

volume = "58",

pages = "534--541",

journal = "Ceramica",

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TY - JOUR

T1 - Structural and electronic properties of iron oxides in the celadon glazes (II)

AU - Hidaka, M.

AU - Takeuchi, K.

AU - Wijesundera, R. P.

AU - Kumara, L. S.R.

AU - Sugihara, S.

AU - Momoshima, N.

AU - Kubuki, S.

AU - Sung, Nark Eon

PY - 2012/10

Y1 - 2012/10

N2 - Celadon glazes have been investigated by means of an X-ray absorption spectrum (XAS) near a Fe-K edge by using synchrotron radiation and a Mössbauer spectrum. High-temperature treatments under CO-deoxidizing and oxidizing till about 1300 °C show the different glaze-color each other. The XAS analyses suggest that the deoxidized celadon glaze (Seiji A) and the oxidized one (Seiji C) have a modified α-Fe2O3 structure and an ideal one, respectively, but not FeO structure. The Mössbauer spectra also suggest that the celadon glaze-color depends on the hybridized 3d5L and 3d6L bands near an electronic Fermi level (EF), where the hybridization is induced by an electronic exchange interaction between 3d orbitals of Fe ions and 2p orbitals of surrounding O ions in the celadon glaze of glass-state.

AB - Celadon glazes have been investigated by means of an X-ray absorption spectrum (XAS) near a Fe-K edge by using synchrotron radiation and a Mössbauer spectrum. High-temperature treatments under CO-deoxidizing and oxidizing till about 1300 °C show the different glaze-color each other. The XAS analyses suggest that the deoxidized celadon glaze (Seiji A) and the oxidized one (Seiji C) have a modified α-Fe2O3 structure and an ideal one, respectively, but not FeO structure. The Mössbauer spectra also suggest that the celadon glaze-color depends on the hybridized 3d5L and 3d6L bands near an electronic Fermi level (EF), where the hybridization is induced by an electronic exchange interaction between 3d orbitals of Fe ions and 2p orbitals of surrounding O ions in the celadon glaze of glass-state.

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DO - 10.1590/S0366-69132012000400020

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SP - 534

EP - 541

JO - Ceramica

JF - Ceramica

IS - 348

ER -

Structural and electronic properties of iron oxides in the celadon glazes (II)

Abstract

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