Generation‐recombination noise and the microwave emission from InSb

摘要

A classification of the microwave emission phenomena from InSb is given. An explanation for the high‐field microwave emission is proposed. Experimental evidence supporting this theory is discussed. New experimental results obtained by using pulsed high electric fields in a constant‐voltage configuration are presented. One result is the observation of microwave emission in the absence of magnetic field. Another result is a confirmation of the burst emission observed earlier, which we associate with the temporary appearance of Gunn‐effect domains. An estimate of the domain width and the maximum domain field is given, which results in very wide domains and low domain fields.