We report an experimental investigation by electron paramagnetic resonance (EPR) spectroscopy on the hyperfine structure of the center in γ-ray irradiated amorphous silicon dioxide materials. This study has driven us to the determination of the intensity ratio between the hyperfine doublet and the main resonance line of this point defect. This ratio was obtained for a variety of silica samples and compared with the analogous ratio obtained for the defect. The comparison definitively confirms that the electronic wave function involved in the center is actually delocalized over four nearly equivalent Si atoms

BUSCARINO G, AGNELLO S, GELARDI FM, PARLATO A (2007). Electron paramagnetic resonance investigation on the hyperfine structure of the E'δ center in amorphous silicon dioxide. JOURNAL OF NON-CRYSTALLINE SOLIDS, 353(5-7), 518-521 [10.1016/j.jnoncrysol.2006.10.019].

Electron paramagnetic resonance investigation on the hyperfine structure of the E'δ center in amorphous silicon dioxide

BUSCARINO, Gianpiero;AGNELLO, Simonpietro;PARLATO, Aldo;GELARDI, Franco Mario
2007-01-01

Abstract

We report an experimental investigation by electron paramagnetic resonance (EPR) spectroscopy on the hyperfine structure of the center in γ-ray irradiated amorphous silicon dioxide materials. This study has driven us to the determination of the intensity ratio between the hyperfine doublet and the main resonance line of this point defect. This ratio was obtained for a variety of silica samples and compared with the analogous ratio obtained for the defect. The comparison definitively confirms that the electronic wave function involved in the center is actually delocalized over four nearly equivalent Si atoms
Settore FIS/01 - Fisica Sperimentale
Settore ING-IND/20 - Misure E Strumentazione Nucleari
BUSCARINO G, AGNELLO S, GELARDI FM, PARLATO A (2007). Electron paramagnetic resonance investigation on the hyperfine structure of the E'δ center in amorphous silicon dioxide. JOURNAL OF NON-CRYSTALLINE SOLIDS, 353(5-7), 518-521 [10.1016/j.jnoncrysol.2006.10.019].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/14078
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