Generalized conductance sum rule in atomic break junctions

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arxiv org / abs / cond-mat / 0 0 10103 v1. 2000
Zusammenfassung

When an atomic-size break junction is mechanically stretched, the total conductance of the contact remains approximately constant over a wide range of elongations, although at the same time the transmissions of the individual channels (valence orbitals of the junction atom) undergo strong variations. We propose a microscopic explanation of this phenomenon, based on Coulomb correlation effects between electrons in valence orbitals of the junction atom. The resulting approximate conductance quantization is closely related to the Friedel sum rule.

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530 Physik
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ISO 690KIRCHNER, Corinna, Johann KROHA, Elke SCHEER, 2000. Generalized conductance sum rule in atomic break junctions. In: arxiv org / abs / cond-mat / 0 0 10103 v1. 2000
BibTex
@incollection{Kirchner2000Gener-9387,
  year={2000},
  title={Generalized conductance sum rule in atomic break junctions},
  booktitle={arxiv org / abs / cond-mat / 0 0 10103 v1},
  author={Kirchner, Corinna and Kroha, Johann and Scheer, Elke}
}
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