| Popis: |
A method for calculating the low temperature, hole burning line shapes of molecules in a two-dimensional glass in presented. An extension of the standard dynamic model for three-dimensional glasses is employed. A calculation of the 2-D spatial average with the proper correlation function description predicts non-Lorentzian hole profiles (narrower near the peak, broader in the wings) due to the reduction in dimensionality. A steeper power law, Δν=aTb, is predicted for two-dimensional linewidths, compared to standard three-dimensional results. These results are in qualitative agreement with recent experiments of molecules on surfaces. |
