We have reanalyzed LiF optical data between 12 and 15 eV. We show that the conductivity spectrum can be fitted using effective mass theory for excitons with asymmetric Lorentzian lineshapes. We find the band gap is about 14.5 eV. The determination of the effective rydberg is not accurate enough to give the short-range correction to the hydrogenic energy for the n=1 state.
A new interpretation of the fundamental exciton region in LiF / Piacentini, Mario. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - STAMPA. - 17:6(1975), pp. 697-700. [10.1016/0038-1098(75)90388-9]
A new interpretation of the fundamental exciton region in LiF
PIACENTINI, Mario
1975
Abstract
We have reanalyzed LiF optical data between 12 and 15 eV. We show that the conductivity spectrum can be fitted using effective mass theory for excitons with asymmetric Lorentzian lineshapes. We find the band gap is about 14.5 eV. The determination of the effective rydberg is not accurate enough to give the short-range correction to the hydrogenic energy for the n=1 state.File allegati a questo prodotto
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