Non-universal behavior of the parity effect in monovalent atomic wires
arXiv:cond-mat/0507656 · doi:10.1103/PhysRevB.73.045421
Abstract
We propose a mixed analytical-ab-initio method for the accurate calculation of the conductance in monovalent atomic wires. The method relies on the most general formula for ballistic transport through a monovalent wire, whose parameters can be determined from first-principles calculations. Our central result is the demonstration of the highly non-universal behavior of the conductance, which depends on the fine details of the contacts to the leads. We are therefore able to reconcile a large number of the apparently contradictory results that have recently appeared in the literature.
4 pages, 5 figures
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