Intrinsic current bistability in InAs/AlxGa1−xSb resonant tunneling devices

Abstract
We report the design and demonstration of a novel resonant tunneling device displaying bistability in operating current over a range of applied voltage. The device is based on a type II InAs/AlxGa1−xSb (0.4<xI‐V behavior under voltage‐controlled conditions. Room temperature operating currents in excess of 2.5×105 A/cm2 are observed, along with peak‐to‐valley voltage ratios up to 1.5.