Low-frequency noise characteristics of AlSb/InAsSb HEMTs as a function of temperature and illumination

Measurements of the low-frequency noise characteristics of AlSb/InAsSb HEMTs as a function of temperature and illumination are reported in this paper. The primary focus in this paper is on devices in which a digital alloy superlattice of InAs/InSb was used to form an InAsSb channel. This appears to be related to the lower stress in this channel, which is matched to AlSb.