Binary Atomic Silicon Logic

Abstract

It has long been anticipated that the ultimate in miniature circuitry will be crafted of single atoms. Despite many advances made in scanned probe microscopy studies of molecules and atoms on surfaces, challenges with patterning and limited thermal stability have remained. Here we make progress toward those challenges and demonstrate rudimentary circuit elements through the patterning of dangling bonds on a hydrogen terminated silicon surface. Dangling bonds sequester electrons both spatially and energetically in the bulk band gap, circumventing short circuiting by the substrate. We deploy paired dangling bonds occupied by one movable electron to form a binary electronic building block. Inspired by earlier quantum dot-based approaches, binary information is encoded in the electron position allowing demonstration of a binary wire and an OR gate.

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Cited by in corpus (20)

• SiQAD: A Design and Simulation Tool for Atomic Silicon Quantum Dot Circuits
• Precise atom manipulation through deep reinforcement learning
• Atomic-scale manipulation and in situ characterization with scanning tunneling microscopy
• Electrostatic Landscape of a H-Silicon Surface Probed by a Moveable Quantum Dot
• Engineered electronic states in atomically precise artificial lattices and graphene nanoribbons
• Deep Learning-Guided Surface Characterization for Autonomous Hydrogen Lithography
• Embedding Human Heuristics in Machine-Learning-Enabled Probe Microscopy
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