Interpretation of oxygen K pre-edge peak in complex oxides

Nan Jiang; John Spence

doi:10.1016/j.ultramic.2005.07.004

Interpretation of oxygen K pre-edge peak in complex oxides

Nan Jiang, John Spence

CLAS-NS: Physics

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

41 Scopus citations

Abstract

A controversial pre-edge peak has often been observed at the O K-edge in absorption spectra from complex oxides. We study this feature in both K ₂O-SiO₂ glass and MgAl₂O₄ spinel crystals. Our time-resolved energy-loss spectroscopy (EELS) results indicate that the pre-edge peak is due to radiation damage, rather than from any intrinsic feature of the material. It is assigned to the π* peak due to the O-O interaction.

Original language	English (US)
Pages (from-to)	215-219
Number of pages	5
Journal	Ultramicroscopy
Volume	106
Issue number	3
DOIs	https://doi.org/10.1016/j.ultramic.2005.07.004
State	Published - Feb 2006

Keywords

Ceramics and refractories
Electron and positron radiation effects
Electron energy loss spectroscopy
Glasses
KO-SiO
MgAl O

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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10.1016/j.ultramic.2005.07.004

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title = "Interpretation of oxygen K pre-edge peak in complex oxides",

abstract = "A controversial pre-edge peak has often been observed at the O K-edge in absorption spectra from complex oxides. We study this feature in both K 2O-SiO2 glass and MgAl2O4 spinel crystals. Our time-resolved energy-loss spectroscopy (EELS) results indicate that the pre-edge peak is due to radiation damage, rather than from any intrinsic feature of the material. It is assigned to the π* peak due to the O-O interaction.",

keywords = "Ceramics and refractories, Electron and positron radiation effects, Electron energy loss spectroscopy, Glasses, KO-SiO, MgAl O",

author = "Nan Jiang and John Spence",

note = "Funding Information: This work is supported by NSF Grant no. DMR-0245702. We are grateful to Professor J. Silcox of Cornell University for advice and use of STEM, which was supported by NSF DMR-9632275 through the Center for Materials Research at Cornell University. We also gratefully acknowledge the use of facilities within the Center for Solid State Science at Arizona State University. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

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doi = "10.1016/j.ultramic.2005.07.004",

language = "English (US)",

volume = "106",

pages = "215--219",

journal = "Ultramicroscopy",

issn = "0304-3991",

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T1 - Interpretation of oxygen K pre-edge peak in complex oxides

AU - Jiang, Nan

AU - Spence, John

N1 - Funding Information: This work is supported by NSF Grant no. DMR-0245702. We are grateful to Professor J. Silcox of Cornell University for advice and use of STEM, which was supported by NSF DMR-9632275 through the Center for Materials Research at Cornell University. We also gratefully acknowledge the use of facilities within the Center for Solid State Science at Arizona State University. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/2

Y1 - 2006/2

N2 - A controversial pre-edge peak has often been observed at the O K-edge in absorption spectra from complex oxides. We study this feature in both K 2O-SiO2 glass and MgAl2O4 spinel crystals. Our time-resolved energy-loss spectroscopy (EELS) results indicate that the pre-edge peak is due to radiation damage, rather than from any intrinsic feature of the material. It is assigned to the π* peak due to the O-O interaction.

AB - A controversial pre-edge peak has often been observed at the O K-edge in absorption spectra from complex oxides. We study this feature in both K 2O-SiO2 glass and MgAl2O4 spinel crystals. Our time-resolved energy-loss spectroscopy (EELS) results indicate that the pre-edge peak is due to radiation damage, rather than from any intrinsic feature of the material. It is assigned to the π* peak due to the O-O interaction.

KW - Ceramics and refractories

KW - Electron and positron radiation effects

KW - Electron energy loss spectroscopy

KW - Glasses

KW - KO-SiO

KW - MgAl O

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VL - 106

SP - 215

EP - 219

JO - Ultramicroscopy

JF - Ultramicroscopy

SN - 0304-3991

IS - 3

ER -

Interpretation of oxygen K pre-edge peak in complex oxides

Abstract

Keywords

ASJC Scopus subject areas

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