Resonant tunneling of two-dimensional electrons through a quantum wire: A negative transconductance device

Luryi, Serge; Capasso, Federico
December 1985
Applied Physics Letters;12/15/1985, Vol. 47 Issue 12, p1347
Academic Journal
A novel three-terminal resonant-tunneling structure is proposed in which the double potential barrier is defined within the plane of a two-dimensional (2-D) electron gas. The resonant tunneling of 2-D electrons into a 1-D "quantum wire" is controlled not only by a source-to-drain voltage but also by a gate potential. In addition to the negative differential resistance found in conventional resonant-tunneling diodes, our device offers a negative transconductance. This feature is potentially useful for low-power logic circuits.


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