Single photon superradiant decay of cyclotron resonance in a p-type   single-crystal semiconductor film with a cubic structure
  We study a single-photon super-radiance under the conditions of cyclotron resonance in a perfect single-crystal p-type semiconductor film with cubic structure. We show that the rate of super-radiant emission scales with tjhe film area. which allows one to specify the size of the film at which the probability of a single-photon super-radiance becomes much greater than the probabilities of other scattering channels. The power of super-radiant emission depends only on three fundamental constants: the electron charge q_{e}, the speed of light c, the electron mass m_{e}, and on the electric- to magnetic field ratio. 
A. G. Moiseev and Ya. S. Greenberg
cond-mat.str-el cond-mat.mes-hall