PECULIAR HOT ELECTRON EFFECTS IN CROSSED ELECTRIC AND MAGNETIC FIELDS
達美 黒沢 · Le Journal de Physique Colloques · 1981
Hot carrier effects expected (in some cases observed) in crossed electric (both static and microwave) and magnetic (not quantum) fields are surveyed. The case that the carrier-optical phonon interaction is strong compared with the other scattering processes is of main concern. In static electric fields, the principal effect is the carrier accumulation in a special region of the momentum space which leads to, e.g., population inversion, negative differential conductivity, superradiance and specific shift of cyclotron resonance in p-type germanium. In intense microwave fields, remarkable is systematic characters exhibited by the carrier motion which bring about some peculiar effects such as the bunching in the momentum space.