Geometry dependence of the conductance oscillations of monovalent atomic chains

Details Geometry dependence of the conductance oscillations of monovalent atomic chains Geometry dependence of the conductance oscillations of monovalent atomic chains

2004-11-12

arxiv.org/abs/cond-mat/0411349v2

Physica Status Solidi (b) 244, 677-684 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 5 figures, 1 table

Scientific paper

10.1002/pssb.200642159

Using a tight binding model we calculate the conductance of monovalent atomic chains for different contact geometries. The leads connected to the chains are modelled as semi-infinite fcc lattices with different orientations and couplings. Our aim is twofold: To check the validity of a three-parametric conductance formula for differently oriented leads, and to investigate the geometry dependence of the conductance oscillations. We show that the character of these oscillations depends strongly on the geometry of the chain-lead coupling.

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