Nonuniversal behavior of the parity effect in monovalent atomic wires
Megjelenés dátuma: 2006
MTMT: 1205017
WoS ID: 000235009700119
Scopus ID: 33144485713
Absztrakt:
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 nonuniversal 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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