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arXiv · 1607.06050

Multiple Silicon Atom Artificial Molecules

John A. Wood·Mohammad Rashidi·Mohammad Koleini·Jason L. Pitters·Robert A. Wolkow
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Abstract

We present linear ensembles of dangling bond chains on a hydrogen terminated Si(100) surface, patterned in the closest spaced arrangement allowed by the surface lattice. Local density of states maps over a range of voltages extending spatially over the close-coupled entities reveal a rich energetic and spatial variation of electronic states. These artificial molecules exhibit collective electronic states resulting from covalent interaction of the constituent atoms. A pronounced electrostatic perturbation of dangling bond chain structure is induced by close placement of a negatively dangling bond. The electronic changes so induced are entirely removed, paradoxically, by addition of a second dangling bond.

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John A. Wood, Mohammad Rashidi, Mohammad Koleini, Jason L. Pitters, Robert A. Wolkow. 2016-07-20. Multiple Silicon Atom Artificial Molecules. https://arxiv.org/abs/1607.06050

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