Channel saturation and conductance quantization in single-atom gold constrictions
Permanent link to this recordhttp://hdl.handle.net/20.500.12613/6049
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AbstractIt is shown that the finite elasticity of atomic-sized gold constrictions allows for a continuous and reversible change in conductance. This is achieved by superposition of atomic-scale or subatomic-scale mechanical oscillations on a steadily retracting/approaching gold tip against a gold substrate. Through these perturbation studies, we report the direct observation of channel saturation and conductance quantization in stable, single-atom gold constrictions. In addition, the origin of peaks in conductance histograms is explained, and the peaks alone are shown to be insufficient in evaluating the stability of atomic configurations. © 2010 The American Physical Society.
Citation to related workAmerican Physical Society (APS)
Has partPhysical Review B - Condensed Matter and Materials Physics
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