ELNES investigations of the oxygen K-edge in spinels

F. T. Docherty; A. J. Craven; D. W. McComb; Janet Mabel Scott Skakle

doi:10.1016/S0304-3991(00)00119-4

ELNES investigations of the oxygen K-edge in spinels

F. T. Docherty, A. J. Craven, D. W. McComb, Janet Mabel Scott Skakle

Physics

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

32 Citations (Scopus)

Abstract

The results of a systematic study of the oxygen K-edge electron energy-loss spectroscopy (ELNES) from a series of aluminium- and chromium-containing spinels are presented. Extra fine structure in the region up to 10eV above the edge onset is observed for the chromium-containing compounds and is assigned to transitions to states created by mixing of oxygen 2p and metal 3d orbitals. The experimental data has been simulated using the multiple scattering code, FEFF8. Good agreement was obtained in the case of magnesium aluminate, but relatively poor agreement was obtained in the case of the chromites. The possible fingerprints in the oxygen K-edge ELNES corresponding to a high degree of inversion in the spinel structure and to a tetragonal distortion of the cubic structure are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	273-288
Number of pages	15
Journal	Ultramicroscopy
Volume	86
DOIs	https://doi.org/10.1016/S0304-3991(00)00119-4
Publication status	Published - 2001

Keywords

electron energy-loss spectroscopy
energy-loss near-edge structure
spinels
multiple scattering calculations
TRANSITION-METAL OXIDES
ENERGY-LOSS SPECTRA
ELECTRONIC-STRUCTURE
CATION DISTRIBUTION
LOSS SPECTROSCOPY
CRYSTALS

Access to Document

10.1016/S0304-3991(00)00119-4

Cite this

@article{2ec0df2b018945288433d1cd3ca80f8d,

title = "ELNES investigations of the oxygen K-edge in spinels",

abstract = "The results of a systematic study of the oxygen K-edge electron energy-loss spectroscopy (ELNES) from a series of aluminium- and chromium-containing spinels are presented. Extra fine structure in the region up to 10eV above the edge onset is observed for the chromium-containing compounds and is assigned to transitions to states created by mixing of oxygen 2p and metal 3d orbitals. The experimental data has been simulated using the multiple scattering code, FEFF8. Good agreement was obtained in the case of magnesium aluminate, but relatively poor agreement was obtained in the case of the chromites. The possible fingerprints in the oxygen K-edge ELNES corresponding to a high degree of inversion in the spinel structure and to a tetragonal distortion of the cubic structure are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.",

keywords = "electron energy-loss spectroscopy, energy-loss near-edge structure, spinels, multiple scattering calculations, TRANSITION-METAL OXIDES, ENERGY-LOSS SPECTRA, ELECTRONIC-STRUCTURE, CATION DISTRIBUTION, LOSS SPECTROSCOPY, CRYSTALS",

author = "Docherty, {F. T.} and Craven, {A. J.} and McComb, {D. W.} and Skakle, {Janet Mabel Scott}",

year = "2001",

doi = "10.1016/S0304-3991(00)00119-4",

language = "English",

volume = "86",

pages = "273--288",

journal = "Ultramicroscopy",

issn = "0304-3991",

publisher = "Elsevier",

}

TY - JOUR

T1 - ELNES investigations of the oxygen K-edge in spinels

AU - Docherty, F. T.

AU - Craven, A. J.

AU - McComb, D. W.

AU - Skakle, Janet Mabel Scott

PY - 2001

Y1 - 2001

N2 - The results of a systematic study of the oxygen K-edge electron energy-loss spectroscopy (ELNES) from a series of aluminium- and chromium-containing spinels are presented. Extra fine structure in the region up to 10eV above the edge onset is observed for the chromium-containing compounds and is assigned to transitions to states created by mixing of oxygen 2p and metal 3d orbitals. The experimental data has been simulated using the multiple scattering code, FEFF8. Good agreement was obtained in the case of magnesium aluminate, but relatively poor agreement was obtained in the case of the chromites. The possible fingerprints in the oxygen K-edge ELNES corresponding to a high degree of inversion in the spinel structure and to a tetragonal distortion of the cubic structure are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

AB - The results of a systematic study of the oxygen K-edge electron energy-loss spectroscopy (ELNES) from a series of aluminium- and chromium-containing spinels are presented. Extra fine structure in the region up to 10eV above the edge onset is observed for the chromium-containing compounds and is assigned to transitions to states created by mixing of oxygen 2p and metal 3d orbitals. The experimental data has been simulated using the multiple scattering code, FEFF8. Good agreement was obtained in the case of magnesium aluminate, but relatively poor agreement was obtained in the case of the chromites. The possible fingerprints in the oxygen K-edge ELNES corresponding to a high degree of inversion in the spinel structure and to a tetragonal distortion of the cubic structure are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

KW - electron energy-loss spectroscopy

KW - energy-loss near-edge structure

KW - spinels

KW - multiple scattering calculations

KW - TRANSITION-METAL OXIDES

KW - ENERGY-LOSS SPECTRA

KW - ELECTRONIC-STRUCTURE

KW - CATION DISTRIBUTION

KW - LOSS SPECTROSCOPY

KW - CRYSTALS

U2 - 10.1016/S0304-3991(00)00119-4

DO - 10.1016/S0304-3991(00)00119-4

M3 - Article

SN - 0304-3991

VL - 86

SP - 273

EP - 288

JO - Ultramicroscopy

JF - Ultramicroscopy

ER -

ELNES investigations of the oxygen K-edge in spinels

Abstract

Keywords

Access to Document

Fingerprint

Cite this