Stable, single-molecule conducting-bridge configurations are typically identified from peak structures in a conductance histogram. In previous work on Pt with H₂ at cryogenic temperatures it has been shown that a peak near 1G₀ identifies a single-molecule Pt-H₂-Pt bridge. The histogram shows an additional structure with lower conductance that has not been identified. Here, we show that it is likely due to a hydrogen decorated Pt chain in contact with the H₂ molecular bridge.
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Kiguchi et al. (2007) studied this question.
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