Axial Cr3+ centres in MgO: EPR and fluorescence studies

K. P. O'Donnell; B. Henderson; D. O'Connell; M. O. Henry

doi:10.1088/0022-3719/10/19/021

Axial Cr³⁺ centres in MgO: EPR and fluorescence studies

K. P. O'Donnell, B. Henderson, D. O'Connell, M. O. Henry

Physics

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

18 Citations (Scopus)

Abstract

The ESR, fluorescence and selective excitation spectra of Cr³⁺ in three different sites of tetragonal symmetry are reported. A comparison of the intensities of the different spectra allows a correlation of the ESR and fluorescence lines to three different tetragonal centres. From the measured splittings it has been possible to deduce the magnitudes of the tetragonal components of the crystalline field used in Macfarlane's theory (1967) of Cr³⁺ ions. Models involving slight changes in the mechanism of charge compensation are discussed.

Original language	English
Article number	021
Pages (from-to)	3877-3884
Number of pages	8
Journal	Journal of Physics C: Solid State Physics
Volume	10
Issue number	19
DOIs	https://doi.org/10.1088/0022-3719/10/19/021
Publication status	Published - 1 Dec 1977

Keywords

fluorescence
excitation spectra

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10.1088/0022-3719/10/19/021

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abstract = "The ESR, fluorescence and selective excitation spectra of Cr3+ in three different sites of tetragonal symmetry are reported. A comparison of the intensities of the different spectra allows a correlation of the ESR and fluorescence lines to three different tetragonal centres. From the measured splittings it has been possible to deduce the magnitudes of the tetragonal components of the crystalline field used in Macfarlane's theory (1967) of Cr3+ ions. Models involving slight changes in the mechanism of charge compensation are discussed.",

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AU - O'Donnell, K. P.

AU - Henderson, B.

AU - O'Connell, D.

AU - Henry, M. O.

PY - 1977/12/1

Y1 - 1977/12/1

N2 - The ESR, fluorescence and selective excitation spectra of Cr3+ in three different sites of tetragonal symmetry are reported. A comparison of the intensities of the different spectra allows a correlation of the ESR and fluorescence lines to three different tetragonal centres. From the measured splittings it has been possible to deduce the magnitudes of the tetragonal components of the crystalline field used in Macfarlane's theory (1967) of Cr3+ ions. Models involving slight changes in the mechanism of charge compensation are discussed.

AB - The ESR, fluorescence and selective excitation spectra of Cr3+ in three different sites of tetragonal symmetry are reported. A comparison of the intensities of the different spectra allows a correlation of the ESR and fluorescence lines to three different tetragonal centres. From the measured splittings it has been possible to deduce the magnitudes of the tetragonal components of the crystalline field used in Macfarlane's theory (1967) of Cr3+ ions. Models involving slight changes in the mechanism of charge compensation are discussed.

KW - fluorescence

KW - excitation spectra

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M3 - Article

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VL - 10

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JF - Journal of Physics C: Solid State Physics

IS - 19

M1 - 021

ER -

Axial Cr³⁺ centres in MgO: EPR and fluorescence studies

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Keywords

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