Resonant tunneling oscillations in a GaAs-AlxGa1−xAs heterostructure at room temperature

Abstract
This letter reports the first observation of resonant tunneling negative differential resistance (NDR) through a double barrier GaAs‐AlxGa1−xAs ‐GaAs‐AlxGa1−x As‐GaAs structure at room temperature. The NDR yields radio frequency oscillations at 300 K in a coaxial cable circuit that compare closely to those of a standard 1N3716 tunnel diode.