Hot edge luminescence in xenon crystals
Kink R.A., Lykhmus A.E., Sel'g M.V.
Glow of free excitons in inert crystals optically excited in the exciton region was observed for the first time ever. The free and autolocalized states of the exciton in Xe are separated by a potential barrier e = 70^ 10 meV, corresponding to an exciton band width В =0.8-1.2 eV.