Formation of a layer of electron-hole drops with the expansion of a cloud of nonequilibrium charge carriers with transonic velocity
Sibel'din N. N., Stopachinskii V. B., Tikhodeev S. G., Tsvetkov V. A.
It is found that in the initial stage of the evolution of a cloud of nonequilibrium charge carriers, created by a short pulse of light in Ge, the leading edge of the cloud moves with transonic velocity, almost independent of temperature and intensity of excitation. It is shown that the basic experimental data can be explained by taking into account the delay between the emission and absorption of nonequilibrium phonons.
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