  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.
