Quantum interference structures in the conductance plateaus of gold nanojunctions

Details Quantum interference structures in the conductance plateaus of gold nanojunctions Quantum interference structures in the conductance plateaus of gold nanojunctions

2003-11-03

arxiv.org/abs/cond-mat/0311038v2

Phys. Rev. B 69, 121411(R) (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.69.121411

The conductance of breaking metallic nanojunctions shows plateaus alternated with sudden jumps, corresponding to the stretching of stable atomic configurations and atomic rearrangements, respectively. We investigate the structure of the conductance plateaus both by measuring the voltage dependence of the plateaus' slope on individual junctions and by a detailed statistical analysis on a large amount of contacts. Though the atomic discreteness of the junction plays a fundamental role in the evolution of the conductance, we find that the fine structure of the conductance plateaus is determined by quantum interference phenomenon to a great extent.

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