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Quantum interference electronic switch

✍ Scribed by O. Vanbésien; D. Lippens


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
164 KB
Volume
17
Category
Article
ISSN
0749-6036

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✦ Synopsis


A novel planar electron waveguide coupler is proposed as an electronic switch. The structure consists of two quantum wires interconnected by a dual branch coupling scheme which is assumed to be controlled by an electrostatic potential. Switching is provided by tuning the phase relations between the different scattered waves by the two coupling branch lines. Assuming ballistic transport, the analysis is conducted by solving the time independent two-dimensional Schrödinger equation in order to derive the conductance characteristics. At a resonant energy of (25 \mathrm{meV}) and for a waveguide width of (27.4 \mathrm{~nm}), over (90 %) of the electron wave has been transferred with a half picosecond time response.


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