Abstract
We have constructed and analyzed a 635-atom continuous random network model of vitreous As 2O 3. Computer relaxations of the strain energy carried out for different distributions of bond angles indicate that bond angles in the glass are similar to those found in crystalline forms of As 2O 3. Vibrational spectra calculated for the model reproduce the main features seen in recent measurements of the infrared and Raman spectra of vitreous As 2O 3 but suggest an intermediate range order more like that found in crystalline forms.
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