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cond-mat.dis-nn2010
Temperature dependence of reflectivity of amorphous silicon dioxide: Evidence of delocalized excitons weakly scattered by phonons
E. Vella, F. Messina, M. Cannas +1
We studied the reflectivity spectra of amorphous silicon dioxide detected under vacuum UV synchrotron radiation as a function of temperature between 10 and 300 K. Kramers-Kronig di…
cond-mat.mtrl-sci2010★ 35 cited
Evidence of delocalized excitons in amorphous solids
Fabrizio Messina, Eleonora Vella, Marco Cannas +1
We studied the temperature dependence of the absorption coefficient of amorphous SiO in the range from 8 to 17.5~eV obtained by Kramers-Kronig dispersion analysis of reflectivi…