20 papers
Bulk and Surface Nucleation Processes in Ag2S Conductance Switches
M. Morales-Masis, S. J. van der Molen, T. Hasegawa +1
We studied metallic Ag formation inside and on the surface of Ag2S thin films, induced by the electric field created with a STM tip. Two clear regimes were observed: cluster format…
Aluminium Nanowires: Influence of Work Hardening on Conductance Histograms
I. K. Yanson, O. I. Shklyarevskii, J. M. van Ruitenbeek +1
Conductance histograms of work-hardened Al show a series up to 11 equidistant peaks with a period of 1.15 +/- 0.02 of the quantum conductance unit G_0 = 2e^2/h. Assuming the peaks…
Evidence for a single hydrogen molecule connected by an atomic chain
M. Kiguchi, R. Stadler, I. S. Kristensen +2
Stable, single-molecule conducting-bridge configurations are typically identified from peak structures in a conductance histogram. In previous work on Pt with H at cryogenic te…
Effect of bonding of a CO molecule on the conductance of atomic metal wires
M. Kiguchi, D. Djukic, J. M. van Ruitenbeek
We have measured the effect of bonding of a CO molecule on the conductance of Au, Cu, Pt, and Ni atomic contacts at 4.2 K. When CO gas is admitted to the metal nano contacts, a con…
Oxygen enhanced atomic chain formation
W. H. A. Thijssen, D. Marjenburgh, R. H. Bremmer +1
We report experimental evidence for atomic chain formation during stretching of atomic-sized contacts for gold and silver, that is strongly enhanced due to oxygen incorporation. Wh…
Atomic size oscillations in conductance histograms for gold nanowires and the influence of work hardening
I. K. Yanson, O. I. Shklyarevskii, Sz. Csonka +4
Nanowires of different nature have been shown to self-assemble as a function of stress at the contact between two macroscopic metallic leads. Here we demonstrate for gold wires tha…