Non-universal behavior of the parity effect in monovalent atomic wires

Details Non-universal behavior of the parity effect in monovalent atomic wires Non-universal behavior of the parity effect in monovalent atomic wires

2005-07-27

arxiv.org/abs/cond-mat/0507656v1

Physical Review B 73, 045421 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.73.045421

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.

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