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Cascaded quantum wires and integrated designs for complex logic functions: nanoelectronic full adder

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4 Author(s)
Lau, B. ; Dept. of Phys. & Astron., Univ. Wurzburg, Vancouver, BC, Canada ; Hartmann, D. ; Worschech, L. ; Forchel, A.

Complex logic functions based on cascading quantum wires (QWs) defined in a GaAs/AlGaAs-based two-dimensional electron gas by electron-beam lithography and wet chemical etching are demonstrated. The concept of connected QWs leads to a nanoelectronic full adder with independent carry- and sum-bit structures. Monolithic designs were fabricated and were found to also demonstrate simultaneous switching with common thresholds between high and low logic levels.

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Electron Devices, IEEE Transactions on  (Volume:53 ,  Issue: 5 )