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Schottky Wrap Gate Control of Semiconductor Nanowire Networks for Novel Quantum Nanodevice-Integrated Logic Circuits Utilizing BDD Architecture

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Novel quantum-nanodevice-integrated logic circuits by the combination of binary decision diagram (BDD) logic architecture and semiconductor nanowire networks controlled by Schottky wrap gates (WPGs) are presented. Simple, small and flexible structure with fine gate control of the WPG gives opportunity to implement a directed graph of a Boolean function on the nanowire network topologically. Quantum wire and single electron-type WPG-based node device are designed for BDD circuits and their operations are investigated experimentally. WPG BDD logic circuits from elemental logic functions to subsystems using GaAs-based nanowire networks with hexagonal and 2D hypercube topologies are demonstrated. Feasibility of the WPG BDD circuits is confirmed by successful implementation of an ultra-small and ultra-low-power digital system, nanoprocessor, on a hexagonal network. Device and circuit performances of the present approach are also discussed.
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Keywords: BINARY DECISION DIAGRAM (BDD); NANOPROCESSOR (NPU); NANOWIRE NETWORK; QUANTUM NANODEVICE; SCHOTTKY WRAP GATE (WPG)

Document Type: Research Article

Publication date: 2007-09-01

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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