HOT-ELECTRON POWER LOSSES IN A QUANTUM-WELL - A REALISTIC POLAR OPTICAL PHONON MODEL

Calculations of hot electron power losses in a semiconductor quantum w ell are reported on the basis of a realistic phenomenological model fo r polar optical phonons and the corresponding Frohlich-type electron-p honon Hamiltonian. This model has been discussed in recent times and l eads to a plausible description of such phonons. Hot electrons are tak en in a steady state configuration when the temperature model is appli cable. We assume a wide range of relatively low electron temperatures (25 to 100 K) and the contribution of acoustic phonons is also include d. Comparison with previous theoretical and experimental work is made with the fundamental aim of evaluating the relative importance of this model for polar optical phonons for the description of power losses i n a quantum well.