Atomic-scale logic circuits built from silicon dangling bonds showcased in new paper
teortaxesTex · x · 2026-08-04
A recent arXiv paper demonstrates complex, error-free atom-scale circuitry constructed using silicon dangling bonds (DBs). The research team systematically fabricated and characterized six planar quantum wire configurations at 4.5 K using scanning tunneling microscopy (STM). By combining density functional theory (DFT) and spectroscopy, they reveal how minor variations in wire geometry affect orbital hybridization and induce new electronic states, showing that dimer and wider wires exhibit multiple discrete mid-gap electronic states.
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