Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities

C. J. Rossouw; P. S. Turner; T. J. White

doi:10.1080/13642818808201617

Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities

C. J. Rossouw, P. S. Turner, T. J. White

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

14 Citations (Scopus)

Abstract

The orientation dependence of characteristic X-ray emission (the Borrmann effect) under near-zone-axis diffraction conditions has been used to identify the site preferences of strontium, zirconium and uranium impurities within a CaTiO₃ (perovskite) host structure. As characteristic emission lines from these impurities occur at both higher and lower energies than the calcium or titanium K-shell excitations, effects of delocalization are clearly measureable, and are used as a tool in the ALCHEMI analysis. It is found that strontium and uranium strongly partition into calcium sites, whereas zirconium occupies titanium sites.

Original language	English
Pages (from-to)	227-241
Number of pages	15
Journal	Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume	57
Issue number	2
DOIs	https://doi.org/10.1080/13642818808201617
Publication status	Published - Feb 1988
Externally published	Yes

ASJC Scopus Subject Areas

General Chemical Engineering
General Physics and Astronomy

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10.1080/13642818808201617

Cite this

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title = "Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities",

abstract = "The orientation dependence of characteristic X-ray emission (the Borrmann effect) under near-zone-axis diffraction conditions has been used to identify the site preferences of strontium, zirconium and uranium impurities within a CaTiO3 (perovskite) host structure. As characteristic emission lines from these impurities occur at both higher and lower energies than the calcium or titanium K-shell excitations, effects of delocalization are clearly measureable, and are used as a tool in the ALCHEMI analysis. It is found that strontium and uranium strongly partition into calcium sites, whereas zirconium occupies titanium sites.",

author = "Rossouw, {C. J.} and Turner, {P. S.} and White, {T. J.}",

year = "1988",

month = feb,

doi = "10.1080/13642818808201617",

language = "English",

volume = "57",

pages = "227--241",

journal = "Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties",

issn = "1364-2812",

publisher = "Taylor and Francis Ltd.",

number = "2",

}

Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities. / Rossouw, C. J.; Turner, P. S.; White, T. J.
In: Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties, Vol. 57, No. 2, 02.1988, p. 227-241.

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

TY - JOUR

T1 - Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities

AU - Rossouw, C. J.

AU - Turner, P. S.

AU - White, T. J.

PY - 1988/2

Y1 - 1988/2

N2 - The orientation dependence of characteristic X-ray emission (the Borrmann effect) under near-zone-axis diffraction conditions has been used to identify the site preferences of strontium, zirconium and uranium impurities within a CaTiO3 (perovskite) host structure. As characteristic emission lines from these impurities occur at both higher and lower energies than the calcium or titanium K-shell excitations, effects of delocalization are clearly measureable, and are used as a tool in the ALCHEMI analysis. It is found that strontium and uranium strongly partition into calcium sites, whereas zirconium occupies titanium sites.

AB - The orientation dependence of characteristic X-ray emission (the Borrmann effect) under near-zone-axis diffraction conditions has been used to identify the site preferences of strontium, zirconium and uranium impurities within a CaTiO3 (perovskite) host structure. As characteristic emission lines from these impurities occur at both higher and lower energies than the calcium or titanium K-shell excitations, effects of delocalization are clearly measureable, and are used as a tool in the ALCHEMI analysis. It is found that strontium and uranium strongly partition into calcium sites, whereas zirconium occupies titanium sites.

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JO - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties

JF - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties

IS - 2

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Axial electron-channelling analysis of perovskite Ii. Site identification of Sr, Zr and U impurities

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