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Artigo Revisado por pares
BIBTEX RIS

EPR investigations on europium(II)-doped barium aluminate

1999; Royal Society of Chemistry; Volume: 1; Issue: 17 Linguagem: Inglês

10.1039/a903385h

ISSN

1463-9084

Autores

Takato Nakamura, K. Kaiya, N. Takahashi, T. Matsuzawa, Christopher C. Rowlands, V. Beltrán-López, Graham Smith, P. C. Riedi,

Tópico(s)

Glass properties and applications

Resumo

High frequency EPR spectra of europium(II)-doped BaAl2O4 powder phosphor have been analysed. Spectral simulation was carried out by a Fourier transform Monte Carlo method using an equation derived from the second-order perturbation of the energy levels for S=7/2. It is found that the spectra can best be interpreted in terms of europium(II) ions in two different sites. One quarter of the europium(II) ions are located in a site with a ∣D∣ of 0.345 cm-1, and the remaining europium(II) ions are in a site with a ∣D∣ of 1.08 cm-1. Estimated values of ∣E∣ are equal to 1/3

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