New resonant tunneling device with multiple negative differential resistance: Digital and signal processing applications with reduced circuit complexity.

1 January 1987

A new approach to obtain multiple peaks in the current-voltage characteristic of a resonant tunneling (RT) device is demonstrated. The peaks are generated using only the ground state resonance of the quantum well rather than several states, as in conventional RT devices. The separation between the peaks is voltage tunable and also the peak currents can be made nearly equal, which is necessary to use the device in a variety of circuit applications. A functional device operating at 100K, with two peaks in the I-V has been fabricated.