A novel entirely planar quantum transistor based on tunnelling between two separate electron layers in an AlGaAs/GaAs double quantum well heterostructure is demonstrated. Using the tunability of the tunnelling I-V characteristics, digital logic such as XOR and NAND are demonstrated using a single double electron layer tunnelling transistor
Published in:
Electronics Letters
(Volume:34
,
Issue:
9
)
Date of Publication: 30 Apr 1998