Feasibility of a phase transition in a nonequilibrium electron-hole plasma in germanium
Ashkinadze B. M., Fishman I. M.
We investigated experimentally the absorption and dispersion of microwaves in thin and bulky samples of pure germanium following surface optical excitation. The results can be explained by means of a hypothesis that postulates the production, near the illuminated surface of the sample, of metastable dense-plasma bunches that relax into electron-hole condensate drops.